Sonic and the gang ambush Egg Fort 2 as it receives the last Chaos Emerald from E-77.

When an eclipse from the newly-repaired moon blocks the sun, Station Square faces a risk of panic. Eggman steps in and creates an artificial sunlight orb to provide light through out the city. It seems like Eggman is truly doing some good. Unfortunately, Sonic dosen't think so...

Sonic is supposed to have a date with Amy, but he doesn't show up. So instead, she has a date with Sam Speed. Meanwhile on Eggman's old island base, Bokkun finds one of Prof. Gerald Robotnik's other creations: Emerl & tries to tell him to defeat Sonic. Bokkun opens the door, & he & Emerl walk to the tank. Sonic is trying to get to his date with Amy, but Bokkun stops him to free Eggman, Decoe & Bocoe from jail with the new tank. Can Sonic stop Bokkun & Emerl from freeing Eggman? Or will he be late for his date with Amy?

A tournament at a nearby stadium is being held, with a red Chaos Emerald as the prize. Sonic, Tails, Knuckles, Rouge, Amy, Emerl, and several of their Station Square friends show up to participate in this outstanding event...

The fight tournament draws to a close with Emerl being the winner. However, Emerl starts going beserk after holding the Chaos Emerald and begins to destroy everything in his path. When Amy, Sonic, Knuckles, Tails, and Rouge are unable to stop it, Cream shows up to confront her robotic friend. Will she be able to talk Emerl into ceasing his uncontrollable mayhem, or will she have no choice but to fight and shut him down?

It is discovered that Earth and Mobius are merging. If they join together completely, then time will stop forever. It is decided that Sonic and co. must return home through chaos control. This upsets Chris, who runs off to confront Eggman thinking it is one of his tricks to get rid of Sonic.

Sonic squares off with Dark Oak and his army of Metarex.

After the galaxy is saved, Sonic and his friends recalls memorable moments and anticipate their future.

Shadow invades the Blue Typhoon, trying to kill Cosmo for reasons unknown.

The giant seed finally reaches the final stage of its metamorphosis, and Cosmo steps in the battle to stop it.

A new destructive vision is revealed to Sonic; Chaos starts a devastating flood in Station Square.

A Metarex fleet lead by Scarship sets out to destroy Eggman and Sonic with its might.

Vector comes up with a scheme to play match maker for Cosmo and Tails.

When the team discovers that Cosmo's brain is emitting a signal to the Metarex, they plan on trying to eliminate the signal, except that the signal is connected to the part of her brain that translates sounds and sight. While Tails and Cosmo are torn about this, Knuckles pushes for the surgery.

The president's office tries to lure Sonic and the gang into a trap with a Chaos Emerald.

Sonic and the gang face off against eerie ghosts released by a careless cameraman.

Sonic tries to relax aboard a cruise ship, then learns he will have to save it from an iceberg.

Dr. Eggman provokes Sonic into accepting a challenge by the leader of the S-Team.

After defeating Eggman's E-88 robot, Sonic goes berserk because of an implanted control device.

Sonic and the gang try to find the last Chaos Emerald before Dr. Eggman; Knuckles decides to help Dr. Eggman as a way to get back to his home.

Shadow commits a crime but the warrant that goes out is for Sonic's arrest.

As the clock ticks for Space Colony Arc's crash, Sonic, Eggman, Bokkun, Dekkun, Knuckles, Tails, and Rouge try to get the Master Emerald to the power source, The Chaos emeralds. Meanwhile, Shadow is faced by Chris, who reminds him of Maria's Wish, to help Mankind. As Sonic, Knuckles and the two robots reach the power source, a recreated temple of Chaos, a robot/organic beast attacks the crew, thinking of a way past, Shadow offers to distract the beast long enough to stop the colony. Will they succeed? Watch and find out!

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Eggman, Decoe, and Bocoe hatch a plan to destroy the Equator with a giant Robot, and it's up to Sonic, Tails, Knuckles, Amy, Chris, and Rouge to stop him.

With Eggman under the Volcano Sonic, Rouge, Knuckles, Tails and Chris follow him. But is there something hidden from the world there?