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.

Hypnobot teams up with Dr. Eggman to take over the world, while the entire gang is overwhelmed by hordes of hypnotized, evil robots.

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 and Tails discover that the City in the Clouds is under the control of evil robots, and it might be Tails' fault.

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.

After accidentally triggering the state of emergency protocol, Sonic, his friends, Eggman, Orbot and Cubot are stuck in Eggman's lair.

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 challenges Tails to prove he is a genius by capturing Sonic.

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?

Robots all over the planet have turned evil. Sonic & Tails travel to the city in the clouds to get help curing the infected robots.

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.

Mighton and Bolts, two robots from a city in the clouds, think Sonic and the gang are villains because they destroy robots.

The guys are stoked to find out their band, Dude-itude, has booked its first road gig so they hit the road in their new decked-out van.

Morpho sends Sonic to a dimension where he never existed. Sonic must unite his gang and help take back the alternate dimension village.

The gang becomes very competitive with one another when they enter an auto race, using cars they've designed themselves.

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.

While Tails tests his teleporter on himself, he finds himself in the body of a Bee Bot. Sonic must figure out how to reverse the process.

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.

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.

Tails sets out to prove that the mythical creature Muckfoot is real.

After a failed experiment, Eggman transforms himself into an adorable creature every time he gets angry.

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.

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.

With the guys' band away for a gig Amy & Sticks have a girls' weekend. When Belinda hears half the gang is gone, she plans an attack.

Eggman can't pay the tax bill for his trash pickup, so to raise the necessary funds, he must turn his evil lair into a luxury resort.