Storyline: One month after Sonic the Hedgehog and his allies defeated Dr. Eggman and liberated the world from his Eggman Empire during the Eggman War, the evil doctor went missing. However, his Badniks remained. Initially directionless, these robots eventually began launching coordinated attacks on villages, suggesting that someone had taken control of them. Sonic thus begins traveling from town to town to stop the Badniks, receiving help from both old friends and new allies (like Tangle the Lemur) along the way.

With the aid of the Chaotix Detective Agency, Sonic finds the missing Dr. Eggman, only to discover that he is suffering from amnesia and has become a model citizen. Just as Sonic and the Chaotix settle on leaving Eggman to his new life however, Shadow shows up with Rouge to destroy the Doctor after hearing him mention Eggman Land. Sonic, however, manages to convince Shadow to give the amnesiac Eggman a chance to prove his benevolence. In the aftermath, Eggman shows that the Eggman Land he mentioned was but an amusement park for children, thus clearing out any doubts about his amnesia being legit. In the meantime, the ringleader behind the Badnik attacks is making his next move. Sonic and Tails reach the Egg Fleet with the Tornado in order to get some information but as soon as the hedgehog enters the battleship, he discovers that the ringleader is Neo Metal Sonic, who assumed Eggman's appearance to lead the Eggman Empire and finish Eggman's incomplete plans. Amy and Knuckles were eventually informed and they decided to reunite the Resistance to stop Neo's scheme. Sonic soon after infiltrates one of Eggman's bases with the aid of Silver and a new ally named Whisper, where they find out that Neo Metal Sonic has conquered Angel Island in order to seize the Master Emerald.

The and their allies attack , from . The Resistance and their allies attack Master Overlord, from Sonic the Hedgehog #11. Assembling their various allies, Sonic and the Resistance launch an attack on Angel Island in an attempt to liberate the island and stop Neo Metal Sonic. Shortly after arriving, Sonic and Knuckles confront Neo, who used the Master Emerald to become Super Neo Metal Sonic. In the meantime, the Resistance manage to free Angel Island. However, when Shadow intervened with Sonic and Knuckles' battle with Neo Metal Sonic, the robot managed to transform into an even more dangerous form: Master Overlord. Though Master Overlord puts up a bigger challenge for the heroes, he is eventually brought down by the combined strength of everyone, and Angel Island is restored once more. Afterward, Knuckles, as the Resistance's commander, disbands the organization, having concluded that it has served its purpose, so he can remain on Angel Island and guard the Master Emerald. Sonic accepts Knuckles' choice, and everyone eventually sets off from Angel Island.

In the meantime, unbeknownst to Sonic and the others, Eggman has been kidnapped by Rough the Skunk and Tumble the Skunk and brought before Dr. Starline, a Eggman fanatic who wishes to return Eggman to his former glory and is eventually successful. After providing Eggman with the seven Chaos Emeralds, Starline is taken in by Eggman as his newest lackey. Eggman afterwards goes to work creating the Metal Virus, a virus that can convert organics into robotic slaves. To keep Sonic distracted, Eggman and Starline lure Sonic and Tails into the clutches of Rough and Tumble after they learn of Eggman's abduction. While the heroes are able to beat the skunk brothers, they disappear before they can ask them some questions. Suspecting that Eggman was back to his old ways, Sonic goes in search of answers. Along the way, Sonic met and clashed with Dr. Starline, who almost succeeded in destroying Sonic. As he returned to Eggman though, Starline was reprimanded for trying to kill Sonic (and in the wrong way no less), which Eggman saw as his privilege. Meanwhile Sonic resumes his search for Eggman. While hacking into the Eggnet with Amy in an abandoned Eggman base where they discover Eggman's plans for a Faceship, the duo come under attack by Rough and Tumble. During the subsequent fight, due to Eggman's manipulations, Rough and Tumble unwillingly let themselves get infected with a batch of the Metal Virus, which turns them into Zombots. While Sonic is able to contain Rough and Tumble by knocking them into a pit, Sonic gets infected with the Metal Virus in the process.

being infected by , from . Charmy being infected by Zombots, from Sonic the Hedgehog #17. Returning to Tails for aid, Sonic and his friends discover that Sonic can burn off his infection and keep it in check with his speed. Not wanting to risk his friends' safety and let them get infected by the Metal Virus as well, Sonic leaves to find Eggman's Faceship, which they have concluded will be used to distribute the Metal Virus. However, Sonic is too late, as Eggman has already taken off in his Chaos Emerald-powered Faceship with his lackeys and begun spreading the Metal Virus with his ship by administering it in key locations. As the doctor carries out his plan, the Chaotix's home city receives a batch of the Metal Virus, creating a Zombot outbreak. While Sonic and the Chaotix are able to evacuate a handful of survivors with the aid of the Restoration, Charmy falls victim to the Zombot hordes. Soon after, Eggman creates another Zombot outbreak in Cream's home village in order to lure Sonic into the Zombots' grasp. However, Eggman soon discovers that the Zombots are beginning to ignore his commands, presumably due to a mutation in the Metal Virus coding. While Eggman is unconcerned by this development, Starline starts to get worried and begins to second-guess Eggman's brilliance. Meanwhile, Sonic manages to help Cream and Vanilla evacuate while Gemerl safeguards the family. In the process, Cheese and Chocola get turned into Zombots. Soon after, Sonic heads towards Sunset City to help Team Dark intercept the Faceship. By the time Sonic arrives however, a Zombot outbreak has already erupted, leaving him and Team Dark to rescue as many civilians as possible from an overwhelming horde of Zombots. During the commotion though, Sonic begins to feel the fatigue from his constant running. Meanwhile, Shadow gets overwhelmed by the Zombots and is turned into a Zombot himself. By the time Sonic arrives at the site, he is attacked by the Zombot Shadow. Sonic manages to keep Shadow at bay while Rouge drives off with the uninfected civilians. Omega stays behind to fight the remaining Zombots but soon gets torn apart. Silver and Tails come to Sonic and Omega's rescue, leaving Shadow behind. Tails later reveals that he created a sensor for Sonic to give more insight as to how his speed combats the Metal Virus. Meanwhile, Starline begins to devise a plan to control the Zombots that would involve Deadly Six.

and prepare to battle each other once again, from . Sonic and Dr. Eggman prepare to battle each other once again, from Sonic the Hedgehog #23. Tails goes to Central City to research a cure for the Metal Virus, with Tangle and Whisper. After Dr. Eggman creates another Zombot outbreak there, Tangle and Whisper lead evacuation duties. However, Tails work is ruined by Cheese and Chocola, and other Zombots. Following Tails' failed mission, he goes on to help Tangle and Whisper evacuate the rest of the uninfected citizens. Elsewhere, Dr. Starline goes to the Lost Hex and meets Zavok. He manages to convince him to help with their current crisis. Zavok accepts Starline's offer but unbeknownst to the latter, this was not done without malicious intent. Meanwhile, Vector and Espio return to Restoration HQ with many refugees and a captive Zombot Charmy. They planned to keep the bee at the HQ until Tails found a cure for him. Wanting to protect Cream, Gemerl objects to this. Soon, a refugee reveals that he is infected, which causes a panic among the other survivors. Due to the commotion, Charmy breaks out and begin infecting others. An emergency evacuation is ordered. However, Vanilla is not able to escape but makes Amy promise to get Cream to safety. Only one pilot was able to make it out of the building, leaving only one Rescue Shuttle available for use. Before anything else could happen, Charmy attempts to attack the ship's passengers but is stopped by Vector. Knowing he was lost to the Metal Virus, Vector had Gemerl seal him in Restoration HQ with the rest of the Zombots so that everyone else could escape. Following this, the Rescue Shuttle went to Central City to help pick up Tails, Tangle, Whisper and the survivors there. During this, Sonic is busy running to provide Tails' bio-scanner with data. He soon finds Eggman and Starline in Barricade Town, where the duo is attempting to find frequencies to control the Zombots once again. It is here that Eggman tells Starline and Sonic that there is no cure for the Metal Virus. Sonic foils the plot of the evil doctor duo, forcing them to retreat back to the Faceship. As Starline has deemed Eggman to be self-destructive, he once again visits the Deadly Six to ensure that they could exert their will over machines. Starline already knows that the Zeti plotted to turn on him, which prompts him to retrieve the Cacophonic Conch.

empowers himself with a , from . Zavok empowers himself with a Chaos Emerald, from Sonic the Hedgehog #25. Following a Zombot outbreak in Spiral Hill Village, the Restoration fly there to help with evacuation and Sonic is called in to help out as well. Sonic soon discovers that Tangle has been infected by Jewel and she chooses to stay behind to hold Zombots back from following the Restoration. Much to the Restoration's upset hearing this news, the team retreats. Back onboard the Faceship, Starline wastes no more time and brings the Deadly Six onboard. Helpless against the Zeti's powers, Starline attempts to control the Deadly Six with the Cacophonic Conch, but it is taken away from him when he lets his guard down. Starline thus retreats via his Warp Topaz with Eggman and Metal Sonic in tow. Zavok shifts priorities and have each of the Deadly Six equip themselves with a Chaos Emerald so that they can control the thousands of Zombots around the world which they will use to infect the whole world and destroy all that Sonic and Eggman hold dear. Meanwhile, Sonic and the others fly to Angel Island to use it as a safe haven. After being abruptly joined by Eggman, Starline and Metal Sonic, the group received word from Rouge (who snuck onto the Faceship days earlier) about the Deadly Six's plan and how she was coordinating with Orbot to spy on their deployments and coordinate a counterattack. Now, the heroes and villains join forces to figure out a way to combat the Metal Virus. Eggman suggests using the Warp Topaz charged by Super Sonic's power, though Starline refused to comply. Soon, with the help of Metal Sonic, Eggman takes the Warp Topaz from Starline and had him thrown off of the island via a Warp Portal. To increase their numbers against the Deadly Six in case any of, the heroes recruit the Babylon Rogues.

and appear before , from . Super Silver and Super Sonic appear before Zavok, from Sonic the Hedgehog #29. Eggman and Tails manage to build a Multi-Portal Generator that lead to each of the Deadly Six. After some teams have been formed, the heroes go after the Zeti. Ultimately, the heroes are able to retrieve the five Chaos Emeralds in possession of Zazz, Zomom, Zeena and Master Zik, but not without a cost; Cream has been infected and the Babylon Rogues are left to fight a horde of Zombots on their own. As the survivors regroup on the island, they find that the Zavok is approaching the island in the Faceship with a large group of Zombots following him. Fortunately, Rouge crashes the Faceship after she removes the Chaos Emerald that was powering it. This does not stop Zavok though, as he grows to his giant size and used his enhanced powers to toss a large group of Zombots onto the island. While the survivors keep the Zombots preoccupied, Sonic, Metal Sonic and Silver go after Zavok's Chaos Emerald. Amidst the chaos Sonic finds himself nearly fully infected, only for Metal Sonic to swiftly rescue him. Sonic then procures the last Chaos Emerald, and with Silver coming in with the rest, the two transform into Super Sonic and Super Silver, with the transformation completely ridding Sonic of his infection. After Super Sonic defeats Zavok, he uses the Warp Topaz to open up a Super Warp Portal to the sun while Super Silver uses his enhanced psychokinesis to pull away the Metal Virus from around the world. This cures every one of their infections. The Metal Virus is sent into the sun, completely destroying it. Once this is done, Super Sonic attempts to toss the Topaz through the portal, only for it to cause a large explosion.

After being thrown back onto the island, Silver explains that they completed their mission, but that Sonic disappeared when the explosion occurred. Meanwhile, Zavok is captured and imprisoned while the other Deadly Six go into hiding. Taking advantage of the situation while everyone else is concerned with Sonic's disappearance, Eggman makes his escape with his lackeys and the disembodied head of Omega. Meanwhile, Blaze finds Sonic after he crashed down into her world. However, Sonic is soon revealed to be suffering from amnesia. As everyone on Earth picked up the pieces from the from the Zombot apocalypse, the heroes eventually come together for a party in Tangle hometown, only for Eggman to attack them with a mech that incorporated a repaired Omega. While the heroes fight, Sonic has his memory restored by Burning Blaze, and he returns home just in time to help defeat Eggman and free Omega (who breaks apart shortly after). With Eggman having left to plan a new scheme, Sonic soon heads out on his own once more.

, and fend off against , from . Sonic, Tails and Belle fend off against Badniks, from Sonic the Hedgehog #35. Soon after, Rouge and Amy turn to Tails in hopes of having Omega repaired. However, Tails needs the ciphers for Omega's blueprints and rare E-100 Series parts to complete the repairs. As such, Amy, Rouge, Gemerl, Cream and Cheese go to White Park Zone to compete in the White Park Chao Racing Circuit to get the parts they need from the shady champion Chao racer, Clutch the Opossum, while Sonic and Tails head to an abandoned Eggman base to get the code ciphers. However, in the base, Sonic and Tails are being watched by Belle. Meanwhile, Rouge's group catches Clutch's interest, who gives them an offer: if Cheese can come out on top in the races, he will give them the parts they need in exchange for Cheese. Adding to the mystery, a cloaking figure with incredible powers roams around White Park Zone. They briefly engaged Shadow when he came to White Park Zone, looking for a lead leading to Eggman. The next day, Cheese wins the races and Clutch gets ready to the trade, only to have the tables turned on him thanks to Rouge's planning and interference from Shadow, who had been following a lead leading him to Clutch. Rouge's group then gets ready to acquire the parts they need and free the Chao Clutch had been mistreating. Meanwhile, Sonic and Tails come face-to-face with the friendly Belle, only for the base's alarm to trigger and flood the base with Badniks.

In the end, the trio manage to escape. They soon after setting off to White Park after Rouge has send a message to Tails for help. While Sonic and Belle check up on Amy, Cream, Cheese, and Gemerl, Tails goes to give aid to Rouge, only to be knocked out by her. Meanwhile, Sonic leaves Clutch's penthouse to look for Tails and Rouge. Soon after, Clutch activates his Badniks to attack the group and makes his exit. Meanwhile, Tails and Rouge find themselves tied up on a roller coaster, with the latter claiming she was hypnotized into doing someone else's bidding. Sonic and Shadow catch up to the roller coaster to find Dr. Starline behind the kidnappings and the one who evaded Shadow earlier. The doctor then sets off an avalanche aimed for the White Park Grand Chateau, posing the hedgehogs with the choice of rescuing their allies or the innocents unaware of the avalanche. In the end, Sonic and Shadow end out to stop the avalanche. At the same time, Tails and Rouge free themselves and escape to the chateau to warn the others while Starline gets startled off the roller coaster by Omega. At the chateau, Amy's team finishes off the Badniks and unites with Tails and Rouge to ensure the evacuation of the guests. At the same time, Sonic and Shadow try in vain to slow down the avalanche. Meanwhile, Starline shows up at the chateau to kidnap Tails, but is defeated and buried by the avalanche as it hits the chateau, which is able to withstand the impact. In the aftermath, Sonic and Shadow reunite with their allies and friends, and Tails is able to repair Omega with the aid of Belle, who is able to translate Omega's blueprints, and the parts Amy's team got from Clutch. However, this makes Tails suspicious about who Belle's creator is. Meanwhile, Starline, who has survived the avalanche, has managed to acquire a sample of Tails' fur for his long-term plans.

, , and inside 's test chambers, from . Sonic, Tails, and Amy inside Eggman's test chambers, from Sonic the Hedgehog #38. Sometime after, Sonic and Tails give Belle a place to stay by having her join the Restoration, which has become a much larger and well-established organization under Jewel the Beetle's leadership. While there, a clumsy Belle finds a friend in Tangle. Meanwhile, the Restoration detects a strange tower that is creating devastating storms. Suspecting Eggman has something to do with this, Sonic, Tails and Amy head to the tower to investigate. Within the tower however, the trio ends up inside a strange, self-altering space. Meanwhile, Belle persuades Tangle to follow Sonic and his friends with her, hoping secretly to find someone at the tower. Eventually, Sonic's group discover they are inside a space where Eggman can circumvent spatial laws. As they proceed to another section, Sonic and his group find themselves under attack by Quasi-Badniks during their investigations. Forced to take cover, Tails tries to find a way out until Eggman contacts the group and reveals that they are inside the test chambers for his robotic creations, and that he now intends to test his creations on them. In the meantime, Tangle and Belle manage to infiltrate the tower and learn about Eggman's plans. As they start to look for Sonic's group though, Belle accidentally appears in front of some Badniks, only to get ignored. Wanting answers, Tangle had Belle tell her that she is a Badnik and that she wants answers about herself from Eggman. Deciding to trust Belle despite this, Tangle continues onward with Belle. Inside the test chambers, Sonic and co. are forced to content with the changes in spatial laws Eggman is forcing upon them until they let themselves fall into a close-off room. There, Sonic, Tails and Amy are attacked by various models of Egg Vipers. While the trio fights for their lives, Tangle and Belle find Orbot and Cubot and ties them up. Afterward, Tangle heads into the test chambers herself to find Sonic and the others. After Tangle has left, Belle comes into contact with Dr. Eggman, who remembers that he created Belle back when he was "Mr. Tinker". After Eggman then has explained his cruel intentions for creating the tower Belle is in, Belle succumbs to despair. At the same time, due to Tangle's interference, the test chambers have begun overloading, which would result in the tower imploding. Meanwhile, inside the test chambers, Sonic and co. find themselves fighting the Egg Vipers until Tangle arrives and helps them out. With Eggman distracted by Belle, the heroes manage to cripple the Egg Vipers, which Eggman eventually commands to launch one final attack. However, the heroes manage to escape the test chambers and return to the tower. However, the tower has already begun collapsing into itself, so Sonic has both friends and foes hold onto him while he takes them out of the tower, just before it is destroyed. Afterwards, the heroes let Orbot and Cubot go. Belle also explains her past to her friends, and that he was looking for Eggman in hopes of convincing him to abandon his evil ways. However, she now knows it is impossible.

examines , from . Dr. Starline examines Belle, from Sonic the Hedgehog #44. Later, Eggman goes on a hunt for the Deadly Six, but is intercepted by Sonic. Overhearing from the pair that Zavok is still alive and on the lose following a series of events, Master Zik decides to meet Zavok halfway by regathering the Deadly Six. Meanwhile, Zavok, who is still wounded after his battle with Eggman, regathers his resolve to find the Deadly Six and exact his revenge on his enemies. After Zavok finds Zazz and Zomom, the trio encounter Master Zik, Zeena and Zor. The regathered Deadly Six then decide to make a big move by attacking Restoration HQ to reprieve the masses of hope. Before this, they start misleading their enemies in thinking that their target is Sunset City with a series of attacks. To capture the Deadly Six, Jewel hires the Chaotix Detective Agency, who deduce the Deadly Six's apparent movements. Meanwhile, after Sonic defeated Eggman and blew up his nearest base, he is called in to help stop the Deadly Six. Sonic decided to await the Deadly Six in Winterburg, which the heroes have decided to be one of the two potential sites for the Deadly Six's next attack. Meanwhile, the Chaotix have arrived in Sunset City while Tails prepared two new inventions to contain the Deadly Six and return them to the Lost Hex: the Zeti Zapper and Zeti Launcher. However, the heroes realize that they have been played when the Deadly Six attack Restoration HQ. Jewel, Tangle, and Whisper barricaded themselves in the main control room, while Belle stays in the machine shop. However, Belle is soon kidnapped by Dr. Starline, who has taken advantage of the chaos the Deadly Six to sneak into the Restoration HQ and seek out Belle, whom he needs for his long-term plans. Soon after however, Sonic arrives in the Restoration HQ where he faces all of the Deadly Six. Thankfully, due to the timely arrival of Tails and his Zeti Zappers, Sonic and is able to defeat the Deadly Six, only to learn of Belle's kidnapping in the aftermath. Taking the Deadly Six outside, Sonic and Tails have the group board the Zeti Launcher, although not before Sonic and Zavok have a little exchange about the consequences of their actions. In the meantime, Starline has hooked a restrained Belle up his computer to copy her systems' emulation of emotions. He then provokes Belle through a series of emotional phases as he has her recount her past: that she was created by Eggman's Mr. Tinker persona and lived happily with him and the villagers in Windmill Village until Mr. Tinker was kidnapped, and the Metal Virus pandemic began. Later, after the pandemic was over, she would set out on her quest to get Mr. Tinker back after being scorned and rejected by the villagers. Though the Chaotix soon arrive and rescue a heartbroken Belle, Starline escapes, having secured the data he needs for his long-term plans. At the same time, after landing on the Lost Hex, the Deadly Six resolve to return to Earth to exact their revenge.

With everything that has happened lately, Amy decides to go on a camping trip to the Forest Ridge Zone Campground with Tangle, Jewel and Belle. However, each of Amy's friends has something on their minds that raises tensions among the group despite Amy's attempts to have them relax. Eventually, Belle goes out in the middle of the night, only to get knocked out by Motobud. Soon after, a forest fire erupts around the campground. While Amy and Jewel work on keeping the scrambling masses organized, Tangle heads into the forest to find the park ranger's son, Ashe. She eventually finds Belle, who was saved from the fire by Motobud from earlier, and they team up to find Ashe. They eventually find him and his Red Wisp companion, Red Hot, and they learn from Ashe that the fire was started by two anonymous figures. As the group tries to escape the forest fire, they end up falling into a ravine. Fortunately, they manage to catch a ride on a stray log and ride it down the river in the ravine. As this occurs, Jewel, with Amy's assistance, manages to quell the panicked campers and get their help to assist the other campers and contain the fire. Once everyone is reunited, Jewel comes up with a new plan that successfully quells the fire throughout the forest. With a happy ending for everyone assured, Tangle decides to quit the Restoration, having never felt comfortable in it. Jewel accepts this and encourages Tangle to go out on her own. Later on, Tails repairs Belle's burned hand and wishes to learn more about small defective Badniks like Motobud. Meanwhile, Tangle finishes recounting her tale to Sonic and Amy before heading off to find Whisper. Elsewhere, the park ranger discovers that the fire was indeed begun on purpose. Not long after, the Chaotix learn about some chaos having occurred in Central City, and heads there to investigate. As they check out the city, they end up investigating the sewers where they someone carrying Badnik parts through the tunnels. Though they lose their suspect, they manage to trace him to a warehouse. There, they discover their suspects are Rough and Tumble, and that they are helping Clutch, who has decided to rebuild his criminal empire in order to content with the world's new generation of heroes. Though the Chaotix manage to strip Clutch of Badnik parts to sell, he and Rough and Tumble evade capture.

and battling with their mechs, from . Dr. Eggman and Dr. Starline battling with their mechs, from Sonic the Hedgehog #50. Later, Sonic, Tails, and Belle conduct a successful experiment where they are able to transfer Motobud's programming over to other Badniks, rending them friendly and harmless. During the following night however, Sonic and Tails discover that a control signal is being broadcasted to every Badnik around the world that is compelling them to gather in one place. With Belle and Motobud affected by the signal too, Sonic and Tails manage to block the signal's hold on Belle and follow Motobud to the source of the signal: Eggperial City. After then being forced to shut down Motobud and finding a confession for Belle from Eggman's "Mr. Tinker" persona inside said robot, Sonic, Tails and Belle head into Eggperial City. During this time, Dr. Starline has invaded the city and uploaded an override program to take control of Eggman's Badniks across the world. Not taking kindly to this, Eggman soon arrives and enters a battle of mech suits with Starline. In the meantime, Starline sent Surge the Tenrec and Kitsunami the Fennec, his latest "creations", after Sonic and Tails while Belle tries to help fix a damaged Metal Sonic. Surge, who secretly plots to destroy Starline as well, directly disagrees with Sonic's resolve to let his enemies live in hopes of them turning over a new leaf instead of just ending them before more evil can arise. She also plots to destroy not only Sonic and the doctors, but everyone else in the world as well due to her life having been stolen from her by Starline. Though Sonic sticks to his principles, he fails to reason with Surge. Sonic thus continues to battle Surge until she is lost to a giant chasm in the city. Tails similarly tries to reason with Kit, whose only wish is to do everything that pleases Surge. Tails attempts to appeal to their mutual dislike of Dr. Starline to take him down, only for Kit to fight Tails again once he realizes that they would interrupt Sonic and Surge's fight. In the end though, Tails outplays Kit and disarm him. Meanwhile, Eggman and Starline both destroy each other's mechs, leaving the former to reveal that he had predicted how this entire fight would play out and that Starline would exhaust his main weapon, the Tricore, trying to beat his mech. After proving he had taken precautions against Starline's hypnosis gear as well, he easily defeats the platypus. Afterwards, Belle returns a repaired Metal Sonic to Eggman and decides to finally say goodbye to her creator. The room they are in soon after caves in, seemingly crushing a hysterical Starline in the process. Belle proceeds to meets back up with Sonic and Tails, who has a dejected Kit with him, finding out about Surge, Kit, and Starline's potential plan. Before any more can be done however, Eggman sends his Badniks after the trio. After that, the trio get ambushed by a badnik horde. Tails and Sonic and Belle find a shuttle which they use to escape but Metal Sonic ambushes them and destroys the shuttle.

After the crash of the shuttle, Tails, Belle and Sonic wake up with Sonic having his leg hurt. Metal Sonic prepares another attack while Kit wakes up meanwhile Surge survived the fall from Issue 50. Tails, Belle, Kit and Sonic run from Metal Sonic to evade the attack. They find a water container which they use to suspend Metal Sonic. Sonic gives a recap to Kit and then Kit refills his pack and beats Metal Sonic. Sonic and friends escape the city while Surge finds the Dynamo Cage and also escapes. Surge tests out her powers in Central City when Whisper is about to fight Surge. A fight engages between the two and Surge uses the Dynamo Cage to absorb all the wisps and when Surge is about to kill Whisper, Surge has another hallucination of Starline. Jewel informs Sonic and Tails about what is happening and Sonic and Tails go to investigate while Belle consoles Kit about losing Surge. Sonic and Tails see Surge and Whisper so Tails drops Sonic onto a car and Sonic greets Surge. Sonic and Surge start fighting while Tails consoles Whisper about losing her wisps. Tails joins the fight by carrying Sonic and Surge beats them in the air with a Spin Attack. Sonic tries to move but his leg is hurting him while Whisper sends her Cyan Laser Wisp towards Sonic which he uses to beat Surge but Surge goes on the defensive with the Cube Wisp and then takes the Laser Wisp and absorbs it. Tails has a plan and Sonic leads Surge into Tails's trap and is knocked out. Kit finds out that Surge is alive and Kit leaves with Surge. Sonic, Tails, Eggman and Metal Sonic trace Surge to Egg Base Sigma. Sonic and Metal Sonic have a fight while Eggman gets ambushed by Surge and Surge gets surrounded by her enemies and retreats. Surge absorbs all the energy in the base while Sonic, Tails, Eggman and Metal Sonic find Surge and Kit and engage in a fight. Sonic and Metal Sonic fight Surge while Tails fights Kit. Sonic and Metal Sonic are beating Surge when Surge says the fight is not fair as she finds Eggman sneaking away while Metal Sonic is knocked out by Surge. Surge breaks the water containers and uses her electric powers to try and hit Sonic but Eggman saves him. Tails and Kit finish their fight while Surge is using all of the wisps to try and beat Sonic when he says that Surge can take freedom, but she can't. Surge tries to kill Sonic with her electric powers, but the Dynamo Cage knocks her out. Kit tries to kill everyone but to no avail and the two groups split ways.

Shadow performing Chaos Control. Shadow performing Chaos Control. Sonic enters Restoration HQ and meets Jewel, Tangle, Whisper, and Lanolin. Sonic asks what they are doing, and they say they are making a group to infiltrate Eggperial City. Sonic happily joins and they make way to Eggperial City. Sonic uses Green Hover to get a view of Eggperial City. The group scouts the area and find an underground part of the city. A trap activates and Sonic gets disconnected from the trio. After beating a few badniks, Sonic finds a place to hide, and he asks Jewel for backup. Sonic is still fighting some badniks and Silver uses his psychokinesis to destroy a badink and then Blaze uses a fire beam to destroy more badniks. Meanwhile Tangle, Whisper, and Lanolin go to the main tower. The team starts to beat more badniks and Tails is able to figure out how to win by using his Miles Electric. A big explosion happens so Sonic and Tails go to find out what is happening while Silver, Blase and Amy go to destroy more badniks. Sonic and Tails find Team Dark at the scene of the explosion. Silver, Blaze and Amy arrive at the scene while Tangle, Whisper, and Lanolin are looking at Shadow Androids. Eggman unleashes his Shadow Androids on Sonic and friends. Sonic says they should retreat so Silver uses his psychokinesis to form a ramp, and they launch off onto a building. Tails tells Shadow that the huge crystals are generating Chaos Energy, so he uses their chaos energy to beat more Shadow Androids. Shadow starts to feel a strange sense of energy and Giant Fake Chaos Emeralds emerge from the ground. Sonic and others go to higher ground, but Shadow and Omega are left behind. Meanwhile, Lanolin, Tangle and Whisper escape the trap because of the huge power outage. Eggman captures Whisper, and Lanolin in his hexagonal trap and Tangle barely escapes by falling out of the tower. Tangle falls into the ground and is taken back up, but she doesn't have any time to rest because Metal Sonic sends the hexagonal trap after her and she escapes Metal Sonic's sight. She is panicking that she can't warn the others or save Lanolin and Whisper, but she finds the courage and looks for them while Metal Sonic uses her as a tracker to Sonic's friends. She finds them as her head is in the Miles Electric and Amy is scared so she breaks the Miles Electric. Tangle warns everyone about the hexagonal trap and Sonic dodges one and they see Metal Sonic. Sonic fights Metal Sonic while everyone else dodges the hexagonal traps. When Sonic and Silver are about to use a plan Amy just breaks the floor and suspends Metal Sonic. Tangle tells them how to destroy the city, so they split up. Rouge, Blaze and Silver go to find Shadow and Omega while Sonic, Tails, Amy and Tangle go the the central tower. Sonic, Tails, Tangle and Amy are confronted by Metal Sonic, so Tangle blinds Metal Sonic and Tails and Amy carry Sonic and Tangle to the Central tower. Meanwhile, Blaze, Silver and Rouge find Shadow and Omega so they try to free them, but they run into Shadow Androids. Rouge and Blaze fight the Shadow Androids while Silver was able to free Shadow. Meanwhile, the other group arrive at the central tower. Amy shoves Eggman while Tails finishes removing the safeguards while Amy gets knocked out by Eggman while Sonic is distracted, and Metal Sonic knocks out Sonic with a punch. Sonic gets trapped in the hexagonal trap. Whisper and Lanolin appear, and Sonic appears to fight Metal Sonic. Sonic friends jump out of the tower and Metal Sonic uses a Turtloid to hit Sonic in the air. They defeat Metal Sonic by Sonic kicking Metal Sonic so Omega can shoot him. They see the others and land on the Emeralds that Shadow is controlling. Sonic gets a boost from Tails, Amy, Tangle and Sonic destroys Eggman's city. As the emeralds are about to explode Shadow uses Chaos Control to teleport the emeralds into space. After everyone leaves the city, Rouge gives Amy a relic and wants to return it to Knuckles.

Amy uses her Pink Cabriolet from the events of Team Sonic Racing to go to Angel Island to give Knuckles the relic, Rouge stole from him. When Amy leaves the car, the ground falls, and she falls into Hydrocity and Knuckles catches her. Amy returns the relic to Knuckles and Amy asks if he needs assistance to protect the island and he says no. Meanwhile Clutch meets Jewel and asks her if she wants to do a partnership with his company and Jewel agrees. Meanwhile, Tangle, Whisper, and Lanolin are reflecting on what happened in Eggperial City. While they are doing this, a cat enters the room, and his name is Duo. He wants to join the Diamond Cutters and Lanolin starts interviewing him. After the interview, Tangle gives Duo a place to stay and after Tangle leaves, Duo is actually Mimic and tells Clutch he has infiltrated Restoration HQ. The Diamond Cutters meet Silver on their way to train and Silver asks if he can join the group and Whisper allows him. While they are training, Lanolin asks Silver to pick up some rocks and while he is holding them, Duo kicks his shoe, and he drops the rocks. A Giant Chopper tries to eat Silver as he goes to pick up the rocks, but Whisper shoots the Badnik with her wispon in Orange Rocket mode. Silver is told by Lanolin to do better next time and Whisper hears of what happened so the two are suspicious of Duo. While this is happening, Sonic is taking Blaze sightseeing. They run around Spagonia and they run to the top of the clock, and they go back down using Grind Rails. Whisper and Silver try to prove that Duo is Mimic by spooking him but to no avail. Silver then uses his psychokinesis to put Duo on a chair and he jumps off hurting himself as he lands on the floor. Jewel sees what happens and takes Duo to a nurse. Lanolin tells Silver to stay away from the Diamond Cutters and he leaves. Sonic and Blaze find Silver sulking at his garden. Blaze asks Silver what happened, and Silver told her what happened. Sonic compares Blaze and Silver to him and Tails. Sonic says he has to leave, and they part ways. Blaze compares Silver to Sonic and Blaze suggests that they should go to Soleanna and the two to head off. Back on Angel Island, the Babylon Rogues ambush Knuckles and steals the relics that Knuckles has but he tries to catch up, but the Babylon Rogues are too fast on their Extreme Gear for Knuckles to keep up. Meanwhile, Cream and Vanilla make a dinner, but Vanilla forgot some ingredients and she heads to the local market to get ingredients while Rough and Tumble are looking out the window of the house. Knuckles hires the Chaotix to get the relics and get them back. Rough and Tumble ruin the dinner and Vanilla shows up and saves her daughter.

Sonic meets up with Amy at Restoration HQ and is shocked to Surge and Kit sitting with Amy. Amy explains that Surge and Kit came in peace and want to change their lives. Surge says you made it sound simple. A flashback begins with Surge and Kit in Starline Base Sigma running out of food. They hear a noise outside and think it's Eggman and they dash outside to see what's happening. Surge and Kit destroy the badniks and Surge quickly takes out Rough and Tumble with a Spin Attack. Surge asks them if they are working for Eggman, and the skunks say no. Clutch appears and asks for their help in taking over Restoration HQ in exchange for information about what Surge and Kit's lives were like before Starline kidnapped them. Surge and Kit agree and figure out a way to trick Sonic and friends. In the present, Sonic and Amy give Surge and Kit a tour of the Restoration, along the way they meet Silver and Blaze. Sonic greets the duo and asks what they are doing here and they want to get an aid container for Mazuri. Sonic and his friends think about the times they all fought each other. Surge asks Blaze and Silver if she's part of the Restoration. Silver and Blaze say they just help from time to time. Sonic says bye to Silver and Blaze and move on to the next part of the tour. The hedgehogs and Surge and Kit go to the machine shop and meet Belle there. Belle asks Sonic why Surge and Kit are here and says they are here for a do over. Surge sees Whisper's Wispon and takes it from Belle. The group find the Neo Diamond Cutters and they are hostile towards Surge and Kit. Duo says it would be cool to have Surge and Kit in the Diamond Cutters. Surge gives the wispon to Whisper and tells her to shoot her. Whisper doesn't shoot her, and the group walks off. Surge admires the Restoration and would be said if the place was destroyed, and Sonic says which fool would do that. Amy says security has been tightened. Duo comes to take Surge and Kit to their room while Sonic says everyone deserves a second or third chance. Duo transforms into Mimic and says that he will be happy to work with Surge and Kit. Sometime after the events of Sonic Frontiers,[33] Sonic and Tails test out Tails's new Extreme Gear design to find a Chaos Emerald. Tails is able to locate the Chaos Emerald and finds out the Chaos Emerald is beneath them. An earthquake starts and Sonic falls so Tails tries to save him, but his head gets hit by a rock. The two wake up in a cave and Tails's scanner picks up the location of the Chaos Emerald and the duo head off to find it. They walk into a part of the cave with some plants, and they split up to find the Chaos Emerald. Sonic finds the Chaos Emerald but a Salamander ambushes him so Tails gives him the Yellow Tail Turbo so the Salamander can't attack him. Tails observes that the Salamander attacks when someone harms the environment. Sonic goes to the Salamander and offers the Chaos Emerald in exchange for the exit. The Salamander shows them the exit and lets them leave without the Chaos Emerald. When the duo gets out of the cave, Sonic covers the exit with soil so no one can disturb the Salamander. Tails is sad that the exit is gone so Sonic cheers him up by asking Tails what they should eat for dinner. Tails and Sonic head off into the sunset with the Chaos Emerald.

Characters: Sonic is an anthropomorphic hedgehog with blue fur that covers most of his body, and peach skin on his arms, muzzle, insides of his ears and front torso. He has small, triangular ears on his head, six long quills on the back of his head, two spines protruding from his back, a short tail, and two[49] conjoined eyes. For attire, he wears red shoes and white gloves Sonic is described as "like the wind",[77] a free-spirited drifter with an insatiable appetite for adventure.[78][79][80] He values freedom above all else and lives by his own rules rather than societal standards.[81][82][3][77] Sonic's primary passion is speed, and he likes anything that is fast.[4]

Sonic loves traveling around the world,[15] interacting with different cultures present on the planet, and tasting regional dishes, particularly chili dogs.[80] He never stays in one place for long and always seeks his next challenge, viewing life as a never-ending series of adventures.[3] Sonic hates being constrained,[83] which tends to make him very uneasy and restless. However, he has shown the ability to remain calm even after six months of imprisonment onboard the Death Egg. Despite his love for the outdoors, he enjoys quieter activities, such as reading on rainy days.[6] age:15

Sonic has a calm and carefree demeanor[77][81][3] but can be impatient, impulsive and short-tempered.[84][77][85] He can be reckless and quick to act before thinking, acting before thinking and ignoring others' warnings.[84] Nevertheless, he is honest,[3] fearless,[86] and always keeps his promises.[3]

Tails is an anthropomorphic fox cub with two tails. He possesses mostly amber fur with white countershading around his muzzle with cheek tufts, belly and the tips of his tails. He also has large triangular ears with white canals on top of his head, a small black nose and three locks of hair on his forehead. For attire, he wears cuffed white gloves, white socks and red shoes with white tips. Tails can be described as a gentle, sweet, kind and loyal fox with a good and positive attitude.[45][46][47][48][49] While he started out as timid and quiet due to being the victim of bullying, meeting Sonic caused him to open up and become more outgoing over time,[48] having strived to be more like his idol, giving him a progressively brighter, more positive and energetic personality.[50] Tails is not one to grasp the spotlight for himself. Instead, he is always ready and willing to help others without asking for anything in return.

Unlike Sonic, who is constantly hyperactive, Tails is somewhat calmer and more controlled. He has a passion for mechanics, and he finds himself most at home in his workshop working on his next creation.[51] Despite his great skills, he is very humble about his abilities and has not realized how useful his scientific skills are yet.[52][53] Because of this, he sometimes underestimates how much his inventions have helped his friends, and as such, he has yet to discover the true potential of what he can accomplish.[53][54]

Due to having hung out with Sonic for so long, the fox has become somewhat smug like his best friend over time;[43] by the time of the Lost Hex incident, he had become more confident and outspoken about his intelligence, engaging in more friendly banter with Sonic and mentioning his previous accomplishments more frequently. In contrast, he has been known to insult Dr. Eggman and his creations.

Despite his development, Tails can still be timid and withdrawn at times[49][55] and can sometimes sink into self-doubt and insecurity, especially when his creations are insulted or when he feels left aside in favor of others. The status quo of his relationship with Sonic, created from the hedgehog's authority over him, initially placed a mental stranglehold on Tails that made him dependent on Sonic. As such, he often lacked initiative and confidence when alone. However, a turning point for Tails came during the Chaos incident; when Station Square was in danger of being destroyed, and with Sonic nowhere to be found, Tails realized that he could not depend on Sonic forever and had to try on his own. After saving Station Square, Tails realized he could be independent and support himself without Sonic, and all he needed was determination and faith. Since then, Tails has become more independent, self-confident, motivated and brave, rising up to be a real hero when needed.

Despite his insecurity in times of weakness, Tails is always willing to support his friends with a clear mind. He constantly tries his hardest to help in some way, typically by making machines or other devices. Additionally, he hopes to one day be self-sufficient and independent like Sonic to prove he can be relied upon.[54] Also, even though Tails still enjoys being Sonic's sidekick, he believes that he can do almost anything if he puts his mind to it.

During their earlier adventures together, Tails strove to become just like Sonic by replicating the mannerisms he found admirable. In this period, Tails was content with being Sonic's sidekick as he was just happy to hang out with Sonic. As Tails grew as a person, he would still remain as close to Sonic as ever and look up to him as he has always done, but his esteem about Sonic's heroics have dwindled, as these days he cares more about inventing than Sonic's heroic deeds.

Despite his intelligence and general fearlessness, Tails can be naive and big-mouthed, such as during the Space Colony ARK incident, when he accidentally confirmed Eggman's suspicions that the Chaos Emerald that Sonic had was a fake, thus ruining the heroes' plans. He has a tendency to talk technobabble, much to the irritation of his friends, showing that he does not always use tact in a situational matter. Nevertheless, Tails is supportive of his friends, willing to be by their side no matter how dangerous the situation might be, and will do whatever it takes to help them, even if it means sacrificing himself for them.

He has a pure and courageous heart.[56] Although he has been persecuted in the past for his dissimilarities, Tails would over time find the right friends to give him support, which in turn gave him confidence. Loyal and trustworthy,[57] he can be counted on to stand firmly by the side of his friends and help them out however he can. While still young, Tails has time and again proven himself to be a force to be reckoned with despite his inconspicuous appearance, especially with his high intellect. As a result of being practically raised by Sonic though, Tails has been known to carry out his plans without warning or a heads-up. Despite this, he still uses his abilities and talents to carefully prepare himself and his friends for various situations if he is not entirely sure about what they will be facing. He is likewise very friendly and tries his best to approach others with a kind-hearted attitude, even towards enemies whom he does not know very well.

Tails often tries to stay optimistic. However, he is very sensitive, and when severely stressed out or under intense pressure, Tails can become quite nervous and fearful, which renders him unable to properly cope or do anything about the situation at hand. However, even in the worst of situations, he does not give up and shows a strong will to survive.

Much like Dr. Eggman, Tails has an affinity for personalizing his belongings in his likeness, with his house in Emerald Town resembling his head, and the Miles Electric being named after himself. Age:8

Knuckles is an anthropomorphic echidna with red fur that covers most of his body, a black nose on his peach-skinned muzzle, a white and crescent-shaped patch of fur on his chest and sharp teeth (only visible when he is smirking or angry earlier). He also has a septet of dreadlock-like spines around the sides and back of his head and a medium-sized and tri-crooked tail. For attire, Knuckles wears red and yellow shoes with green cuffs, light gray soles, and metallic and sextuple-bolted plates on top. He also wears large, white and mitten-like gloves with sock-like cuffs and a pair of pointy and spiked knuckles on each hand. Jam. Knuckles is independent, wild,[29][30][31] hot-blooded,[32] tough,[29][30][31] and a loner by nature. If Sonic embodies the wind that keeps blowing forward, then the echidna personifies the immobility of a mountain.[6][26] Due to having lived in seclusion for most of his life, Knuckles is a rather antisocial and reclusive individual. As such, he cares very little about what others think, which makes him bluntly honest, straightforward, and somewhat egotistical.[29]

Knuckles is fiercely loyal to Angel Island and does whatever is in his power to protect it. He prefers to stay close to the Master Emerald's shrine to keep a watchful eye over everything at his home. Despite this devotion, the echidna is willing to leave his duty whenever his help is needed.[14] Though he has found other lifestyles appealing, and may even dream of a free one like Sonic's own,[29] he will never trade away his duties as he is far too devoted to his role as guardian, looking very concerned whenever he leaves the Master Emerald behind and spending too much time protecting the giant gem alone.[33] When not performing his duties, Knuckles prefers spending his time practicing his fighting skills, going treasure hunting, or hanging out with his friends.

Knuckles is usually solemn, stoic, and collected, and usually likes to be by himself. As stubborn as he is tough,[31] he is as well headstrong and inflexible,[29] preferring to do things his way, which causes him to clash with others. Regardless, he is very strong-willed, seldom wavering in his determination, and will not give up on his goals once he has set them. While he is cool and determined in battle, the echidna has an extremely short and wild temper and is hard to reason with when he is angry,[34] which has more than once gotten him into trouble.

Despite being a silent loner, Knuckles is a heroic, brave, kind-hearted, and selfless soul. While unwilling to forgive evil people,[32] he will risk his own life to save anyone or get them out of trouble and shows empathy for others. He is likewise a loyal and caring friend, who is always willing to help his friends out in tight situations and will do anything to protect them. When not angered, the echidna is pretty laid-back and never cracks under pressure. He can also be very understanding of the sly and does not take kindly to people who disrespect or hurt his friends, or innocents, in any way.

Having been living much of his life in isolation, Knuckles grew up believing in honesty and holds a firm and steadfast belief that there is good in everyone, which always lets him give people second chances. Because of his lack of social ingenuity, however, it makes him very naive, incredibly gullible, fast about forgiving people, and easily misled, which has given him a history of being tricked by Dr. Eggman. This has made the echidna aggressive and suspicious towards anyone he deems questionable. Over time, however, Knuckles has gotten better about this and is more suspicious concerning the doctor's trickery. Once he finds out he has been tricked, he can get quite angered, but quickly regains enough of his composure to start working towards a resolution immediately.

Though not dull-witted, Knuckles is often prone to rash and ill-advised actions. While not above picking complex strategies, he often chooses force to be the solution, pushing himself through obstacles while focusing on his goal and ignoring other factors along the way. Similarly, he can also be quite reckless when panicking about the Master Emerald, such being especially evident during the Space Colony ARK incident, where he ended up fighting Sonic for the controls of the space shuttle and causing it to crash land as well as abandoning his allies out of a panic due to the Master Emerald shards being lost to space from a collision with a meteor forcing the cargo bay to open. When in his right element, however, Knuckles can be quite clever, sharp-witted, and sneaky, such as setting several successful traps for Sonic and Tails on Angel Island when they first arrived. He is also capable of learning from his mistakes. Knuckles has also proven himself to have a high degree of leadership skills, most noticeably during his time as the commander of the Resistance. He is noted to be very charismatic with inspirational speeches, and he has a flair of daring plans that provided the Resistance with a much-needed offensive during the Eggman War. However, for all his skills as a leader, Knuckles is still easily distracted and prefers to be out on the battlefield rather than in the command center. While he would never admit it, Knuckles has become a bit envious of the lifestyle that Sonic has, being able to live carefree without anything holding him in one place. Even so, Knuckles would never trade away his duties to live Sonic's life, far too devoted to his role as guardian.

Knuckles is said to be shy around women.[35] Also, due to his secluded lifestyle on Angel Island, Knuckles feels very uncomfortable in industrialized or crowded cities and places,[36][37] especially if they do not have any vegetation[38] or are littered with bright lights.[39]

Knuckles seems to have lightened up on later adventures, such as the Time Eater incident and the Eggman War. While he still sometimes displays a brooding, headstrong, and stubborn attitude, he is shown to be better at acknowledging his shortcomings and displays more personal restraint and better social interaction.

Because of this, he refuses to let anyone else protect it, determined to do his job alone.[40][41] As such, when anything bad befalls the island and its Master Emerald, Knuckles takes it very personally and blames himself for not being able to prevent it. He will also not allow himself to rest or take it easy until he is sure that his island and its treasure are safe once more.[42] He also does not like having visitors on his island unless there is a crisis that require Angel Island. As soon as the crisis is over, however, he wants to see his island abandoned by the visitors as soon as possible.[43][44] Despite his ties to his home however, Knuckles is very heroic and is willing to leave his duty whenever his help is needed in order to aid his friends as well as the innocent. As such, he has been known to open his island to the needy and defend those instead of the Master Emerald, just like he promised Espio during the Zombot apocalypse. He is also ready to make sacrifices for the good of all, as seen when he let himself get infected by the Metal Virus in order to keep a Zombot Shadow at bay.[45] age:16