
Sonic and his furry pals try to ward off Dr. Eggman as he continues to create new inventions to take over the world.
Sonic lets martial arts action movie star Tommy Thunder follow him around and observe his "hero process" for Tommy's upcoming role. However, things erupt when Tommy's over-the-top ego clashes with Sonic's and he starts to claim credit for the gang's victories.
Eggman discovers that an asteroid is on a collision course with the planet! It's up to Sonic and his friends to destroy the asteroid.
Sticks is fed up that all the news is fluff, so with Tails' help, she creates a podcast to speak truth to power. It becomes so popular that the TV news producer decides to fire Soar and replace him with Sticks. But in order to report the truth, Sticks is pressured into toeing the company line.
Sonic and Tails are working on an invention to make Sonic even faster. Unfortunately, Sonic goes so fast that he eventually disappears. Tails is nervous. Did he disintegrate Sonic? Meanwhile, Sonic is alone in another plane of existence where he can only see ghostly images of his friends but can't communicate with them. When Eggman decides to attack, the gang battles him while protecting Tails so he can work on a solution.
Sonic is pestered by Mark the Tapir, who weasels his way into a position as Sonic's assistant. Eventually, Mark crosses the line and captures Sonic and his friends.
Eggman challenges Tails to prove he is a genius by capturing Sonic.
After a particularly harsh defeat, Eggman comes to the conclusion that he never wins against Sonic because he is always facing him on favorable ground. So Eggman concocts a plan to have Sonic fight him underwater. Motivational speaker Soar the Eagle will have to use all his coaching talents to help Sonic overcome his phobia of the water in order to defeat Eggman.
Sticks discovers Dreamcaster, a mysterious figure trying to hypnotize the village in the middle of the night. The gang doesn't believe Sticks, telling her Dreamcaster isn't real and her paranoia is out of control.
Tails takes a failure during a battle with Eggman to heart. He feels that even though he's the smart one in the group, he's just not smart enough to help Sonic and the gang. So he creates a machine to duplicate himself and form a "brain trust." But will he and his duplicates be smart enough to defeat anything that Eggman can come up with?
After a very humiliating defeat at the hands of Sonic and the gang, Eggman returns to his lair and takes out his frustrations on Orbot and Cubot. The robot duo has finally had enough! Down tools! They're going on strike!
The good people of the Unnamed Village feel that things have gotten pretty lawless. They figure there's not a lot they can do to stop evil, so they license, regulate, and tax it. Eggman fails the evil test and must wait 90 days to do evil, so Eggman decides to use Orbot as his front. Orbot will get an evil license and Eggman will be the puppet master. But Orbot's ego gets out of control and Eggman must get Sonic's help to defeat The Evil Dr. Orbot.
During a fight against Eggman, Knuckles suffers amnesia. His friends try to help, reminding him of his worst blunders via flashbacks. But he becomes more depressed when he learns that he is the last of his kind - the final echidna. Feeling all alone in the world, Knuckles sets out to find a foster family among the Villagers who might be willing to take him in.
Sonic stumbles upon an ancient mech suit. It makes him more powerful, but soon Sonic becomes dependent on it, and it starts to change his personality.
Eggman builds a giant new robot to defeat Sonic. He programs it to know everything about the Blue Blur, but things don't go as planned - with all FiendBot's knowledge of Sonic, it doesn't want to destroy him, it wants to be his friend.
The gang becomes suspicious when Froglodyte Og comes to the surface world. They fear their suspicions may be correct when a Froglodyte army arrives in The Village.
Knuckles is upset when he wins a lamp in a raffle and it dawns on him that he doesn't have a home in which to keep it. He sets out to rectify the problem by getting a job.
When the Village's power source, the Meroke Chrystal, stops functioning, the gang must go in search of a replacement. They need to solve a series of puzzles in a trap that was built by the ancients to get it.
When the people of the Unnamed Village find out that their village used to be called "Badgerville" after Sticks' evil ancestor, anti-badger sentiment runs rampant. They decide to rename the town to something more agreeable, and an election is held. Eggman buys votes and is able to rename the village Eggman City, then uses a hidden clause to seize power and become a worse tyrant than Sticks' ancestor. In the end, Sticks saves the day, takes back the village, and renames it Hedgehog Village, after Amy, the friend who stuck by her.
Dr. Eggman creates a new line of robot employees for Meh Burger, but there is more to these robot employees than meets the eye.
Amy adopts one of Eggman's Bee-Bots after nursing it back to health. Eggman is unhappy with this and tries to reclaim it.
Feeling the need for unconditional love, Eggman creates "Mombot"... but she's overly critical and embarrasses him in front of Sonic.
Tails sets out on a course to prove that Muckfoot, a mythical creature, is real.
Eggman's nemesis Nominatus is back. With the help of his two virus companions, he tries to conquer the world outside the computer.
Steve Eggman, who claims to be the long-lost brother of Eggman, arrives in the village. However, he desires to fight for good with Sonic and his friends.
An endangered species wanders into Sonic's shack, and he can't move the ugly, smelly animal because of a series of government regulations.
Mighton and Bolt, two robots from Morristown, a city in the clouds, think Sonic and his friends are evil because they are destroying Eggman's robots.
Robots all over the planet have become evil. Sonic and Tails travel to Morristown to seek help, but not before evading through its defense system.
Sonic and Tails find out that Morristown is under the control of Tails's abandoned creation, Hypno-bot. After a brief confrontation with them, Hypno-bot hypnotizes and controls nearly all robots in Morristown.
Hypno-bot teams up with Eggman to conquer the world, so Team Sonic teams up with their cyborg duplicates to defeat Hypno-bot and his army.
Despite Eggman attacking with his tiniest robot yet, it poses a problem to the gang and to the village.
The Lightning Bolt Society threatens to take away Sonic and the gang's fan base after an intense bowling match.
Sonic, Tails, and Knuckles are enthusiastic to find out that their band Dude-itude booked its first performance. In their new decorated van, they hit the road, but are eventually imprisoned after speeding. They must find a way to get back on the road again in time for their band's performance.
With Dude-itude away for a gig, Amy & Sticks relax and enjoy their weekend. However, Belinda plans an attack after hearing that half the gang are gone for the band performance.
Eggman turns his lair into a luxury and tourist resort in order to raise funding to pay his trash pickup tax bill.
When it's revealed that Eggman isn't actually a doctor, he becomes a joke and must go back to school to complete his Ph.D. in evil.
Eggman sells his lair to Barker thinking his evil lair is haunted. Sonic and Tails must prove to Eggman that ghosts aren't real.
Unable to use his robots, the Froglodytes, under the orders of Eggman, force the Gogobas to dig for a crystal that will power Eggman's giant new Mech Suit.
Eggman’s anti-gravity ray causes chaos in Hedgehog Village. With newfound confidence, Cubot tries to bring enlightenment to the villagers.
Sonic challenges Eggman and his robots to a soccer game in order to avoid the closure of the village's beloved recreation center.
After Sonic, Tails and Knuckles accidentally injure Lady Walrus, Chumley, Lady Walrus' baby, must be taken care of by the three.
Sonic is sent by Morpho to an alternate dimension where he doesn't exist. There, Sonic must unify his gang and help retake the village.
The gang becomes very competitive with one another when they enlist in an auto race with vehicles they designed themselves.
Sonic allows Eggman to be his social media friend – a kindness he will surely regret.
Amy's hammer is gone and she is lost without it. Vector the detective is on the case.
Sonic starts working at Meh Burger as a delivery boy, guaranteeing he'll make all deliveries in under 3 minutes. However, Eggman stands in Sonic's way.
After accidentally triggering a lockdown protocol during a battle, the gang is trapped in Eggman's lair with Eggman, Cubot and Orbot in separate places. Sonic and his friends will have to cooperate with Eggman and his accomplices in order to escape.
Tails tests his new teleportation device on himself and accidentally merges with a Bee-Bot. Sonic must find a way to reverse the process.
After a foiled experiment, Eggman morphs into an adorable little cat-like creature every time he is angered.
Steve and Eggman turn their family vacation in Morristown into an evil opportunity. As a result, Mighton and Bolt reach out to Sonic and his friends for help.
After Tails gives D-Fekt, a small robot, the ability to talk, the robot joins the Cubot rejects to try taking down their arch-nemesis, Eggman.
When Eggman tries to recruit Shadow to help him bring more evil to his video game, it has dangerous consequences for Sonic and his friends.
Dealing with Shadow's anger, Eggman switches places with his counterpart from a dimension where Sonic doesn't exist. Now Sonic must deal with both Eggmen, plus Shadow and Metal Sonic, before the two dimensions collapse.