What has happened? Two huge islands formed on the shores of Station Square, one of them being Angel Island, which is falling! Chaos Control apparently brought Sonic's world to Station Square, leaving Chris happy but Eggman to formulate a way to destroy the city. Next, Eggman is instructing his E-100 team to set out and destroy things. Even more terrible, Chaos is loose on Station Square streets reeking havoc! The beginning of the Sonic Adventure adaptation has begun!

After a brief discussion with Chuck,Sonic Tails search for the Chaos Emeralds, Knuckles searches for the pieces of the Master Emerald, and Big Chris search for Froggy. Knuckles gets an image from the past. Sonic Tails encounters Eggman Chaos, who goes under another transformation, while finding a Chaos Emerald. Sonic beats Chaos and Eggman escapes in his Egg Carrier. Sonic Tails goes into the X Tornado and chases Eggman, but Eggman shoots down the X Tornado. Meanwhile, Amy runs into a small bird and they both get kidnapped by one of Eggman's robots. Can Sonic rescue Amy?

After Amy's kidnapping, Sonic Tails head off in the X Tornado to rescue her. Meanwhile, Knuckles gains most of the Master Emerald pieces and gets another vision of the past. After the vision, Knuckles puts the pieces on the altar and discovers the remaining pieces are in the Egg Carrier. Big Chris manages to find Froggy, but gets stolen by E-102 Gamma and They sneak into the Egg Carrier. After Gamma's success of getting Froggy, Eggman sends the other E-series into other places and orders Gamma to get the bird that's with Amy. When Gamma confronts Amy, she persuades him to help her escape. Knuckles hitches a ride with Sonic Tails and battles the Egg Carrier. After getting through the weapons, they enter the Egg Carrier where dangers await them.

It's a battle on the Egg Carrier. Knuckles tries to get the last peices of the master emerald, Big and Chris need to get Froggy, and Sonic and Tails need to get Eggman. But when Chaos turns into Chaos 6 and captures Froggy, Big ,and Chris, It's up to Sonic and Knuckles to set them free. When Eggman launches a missle to destroy Station Square, It's all up to Tails to detonate it.

After the missle attack was prevented, E-102 Gamma deletes master obedience data and heads off. Meanwhile, Amy sets of to find Lilly's brothers. Then, Sonic explores an ancient temple and gets a vision of the past. Then, he fights the Egg viper. Gamma frees Delta, Epsilon, and Zeta. But, Beta tries to destroy him. Can Gamma free Beta?

It's total chaos! Chaos absorbs the 7th Chaos Emerald and starts to destroy Station Square! Now with the Emeralds drained of their power, Sonic friends must use their friendship to power the Emeralds and Sonic changes to Super Sonic! Will Sonic be able to defeat the mystical sea monster known as Chaos?

After accidentally finding Prof. Gerald's diary, Eggman breaks into the military searching for the ""Ultimate Creature"": Shadow. Thanks to the Egg Mobile, Eggman finds the console & finds an unknown creature...

After Shadow steals one of the Chaos Emeralds, Sonic is blamed for the crime and finds himself on the run from the law. As he does so, he runs into Shadow, and realizes why he's suddenly become a wanted criminal, because Sonic and Shadow look very much alike. As the two collide, Shadow reveals his ability to harness the power of the Chaos Emerald to use Chaos Control, which gives him an edge over Sonic.

Under a new alliance, Shadow, Rouge, and Eggman carry out their latest plan. As Eggman launches an attack on Prison Island, Rouge breaks in to steal three Chaos Emeralds, and Shadow sneaks in to plant a bomb which will destroy the island.

Sonic, Tails, Knuckles & Amy manage to break into Eggman's base, undetected. At least they THINK they've entered undetected. Bokkun finds them & calls on the Egg Golem! They board the space shuttle, but their adventure has just begun...

Sonic, Tails, Knuckles, Amy and Tanaka have arrived at the ARK, but when Robotnik, Rouge and Shadow programme the ARK on a path to oblivion, it's Sonic The Hedgehog to the rescue in outer space!

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!

The Chaotix Detectives made up of Vector the Crocodile, Espio the Chameleon, and Charmy the Bee have arrived in Station Square. Their goal is to find Cream for a specific reason, even when they think Sonic stole her. Meanwhile, Dr. Eggman rebuilds half the moon (after part of it was destroyed last episode) into the Eggmoon and claiming to Sonic that he has become reformed. Is this true? And will the others know why the Chaotix Detectives have come for Cream.

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...

After the success of the sunshine balls, Eggman then tries to execute the rest of his plan. Sonic explains how Eggman eggmoon is moving to block, meaning Eggman set up the eggmoon as part of his master plan. Eggman then captures the president, and as he starts to make his own money, Sonic and Tails crash the X-Tornado into the white house and explain what happen while Mr. Tanaka and Topaz move the eggmoon out of the suns path. Sonic then set up a trivia challenge and traps Eggman by hitting him on the head with a big metal pan, and Eggman is sent to jail.

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?

Stewart keeps a close eye on Eggman. Unfortunetly for him, Chris, Helen, Danny, Cream, Cheese, and Emerl stick with Stewart for the ride. When they are all captured by Eggman, they must try to find a way out, or at least figure a way to contact Sonic to help...

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?

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?

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.

This episode tells of what happens before Sonic & co. leave for home. Everyone is sad that they'll leave, especially Chris. There are many flashbacks to the first two episodes until they leave. Eggman, Cream, Amy, and Knuckles leave, but at the last second, Chris shuts the portal to Sonic's world, leaving Sonic trapped on Earth. So begins the (not so) long journey of Chris and Sonic...

After Chris stops him from going home, Sonic goes on a long journey with Chris, who decides to run away. However, his parents want him back and they soon go looking for him. Will Nelson and Linsey find Chris or has he run away forever?

All the animals (except Sonic) are now back at their original world. Amy is having dinner with Cream and Cream's mom at their house, and Knuckles and Rouge are talking in the woods. Suddenly, Eggman hatches a plan, and Tails gets in his plane to stop him. Tails, is almost beaten, but luckily an old friend, Sonic, as Super Sonic, has finally returned, and pops in, saves him and beats Eggman. Meanwhile in Chris' world years have passed. Chris is now a adult. Suddenly he starts remembering all the fun, and the struggles he had with Sonic as a kid.