When evil Dr. Eggman initially fails his evil license test, he uses Orbot as his last chance exam stand-in. Unfortunately, the newly authorized evil Dr. Orbot gets a bit out of control.
After the village's crystal that supplies power stops working, Team Sonic must find a new crystal by going through a blizzard, and overcoming obstacles.
When people find out the village was once called "Badgerville" after Sticks' evil ancestor, anti-badger sentiment runs rampant. An election to rename the village leads to Eggman seizing power.
Eggman's old enemy, the computer virus, Nominatus, is able to reanimate himself into the real world. With the help of his two virus sidekicks, he tries, once again, to take over the planet.
An endangered species, the Widabit, wanders into Sonic's shack. Sonic he can't move the ugly, smelly animal because of a series of government regulations so he's forced to move in with Tails.
When a spaceship containing robots from a city in the clouds lands near Hedgehog Village, it's occupants, Mighton and Bolts, think Sonic and the gang are villains because they destroy robots.
Robots all over the planet have turned evil and are out of control. It seems they have all been infected by some sort of virus. Sonic and Tails travel to the city in the clouds to get help curing the infected robots.
Sonic and Tails discover that the city in the clouds has been taken over by an evil robot that's controlling all the other robots. And the worst part is, that robot, Hypnobot, was originally created by Tails.
The gang battles Hypnobot and Eggman's hypnotized robots, but there are just too many. Bolts creates cyborg duplicates of the gang to help them. The cyborgs aren't effected by Hypnobot because their programming is based on Team Sonic's DNA.
The Lightning Bolts leave villainy and become bowlers. Their fame soars, threatening to steal Sonic and the gangs' fan base. Eggman decides to capitalize on the situation.
Sonic, Knuckles, and Tails are stoked when they find out their band Dudeitude has booked its first road gig on the far side of the island. In their new decked-out touring van, the guys hit the road.
With the guys' band away for a gig, Amy and Sticks decide to have a girls' weekend. When Belinda hears half the gang is gone, she feels it's the perfect time to attack.
Thinking his lair is haunted, Eggman sells it to Barker, who turns it into a haunted house attraction. Sonic and Tails set out to prove ghosts aren't real.
Eggman builds a mech suit, but he can't find a source powerful enough to power his mech suit. However, he learns that the Tummel crystal can power any mech suit, so he teams up with the froglodytes to find the tummel crystal.
