Sonic and Dr. Eggman fight to possess the seventh Chaos Emerald.

Chris attempts to shelter Sonic in his room.

Amy and Knuckles hide in a sewer while fleeing from the authorities.

Chuck suspects Sonic and the others will be able to go back to where they came from by using the power of the Chaos Emerald.

Dr. Eggman's phony tears deceive Knuckles.

Dr. Eggman sends a robot to Chris' elementary class, hoping to brainwash the children and help his goal of world domination.

Chris' teacher, Mr. Steward, makes an unexpected visit.

Eggman sends E-90 to swallow a satellite, disrupting all TV reception; Sonic enters space and must destroy E-90.

Sonic tries to stop Eggman from taking over a resort.

Sonic and the gang play Dr. Eggman and his henchmen in a game of baseball, where the winner gets a Chaos Emerald.

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

Sonic refuses to help the president destroy Dr. Eggman's base; Tails and Christopher face off against E-51, a robot that generates violent winds, over a Chaos Emerald.

Sonic, the military and Knuckles battle robots in an offensive aimed at destroying Dr. Eggman's base.

The president, although happy Dr. Eggman's base is destroyed, is worried about his upcoming election, so he decides to use Sonic to boost his image.

Dr. Eggman's Egg Fort rises from the ashes of his base to wreak havoc on Sonic and the town.

Sonic and friends search the ocean floor for the fourth Chaos Emerald when Dr. Eggman launches an underwater attack.

Hawk is kidnapped; Knuckles receives a mysterious message.

Sonic, Chris, Tails and the Egg Fort crash-land on the Nature continent.

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.

Eggman spots Chris and company while they are looking for Cheese.

Sonic and the gang find out that Mr. Thorndike has unknowingly bought a ring containing a Chaos Emerald.

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.

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

Chris, Cream and Cheese meet the Eggman's newest fiend.

Knuckles has a mysterious vision about a girl named Tikal; Sonic and Tails have their Emeralds stolen.

As Knuckles blames himself for not being able to guard the Master Emerald, Sonic and Tails take off in the X Tornado to save Amy from the Egg Carrier.

Tails and Sonic try to rescue Amy and Lily from Eggman.

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?

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

Chris and friends must leave the mansion because of flood damage; Eggman hacks into the government's computer to learn what is planned for him.

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

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.

Sonic and his friends try to return to their home planet before time freezes.

Tails and the others return to their planet, but Sonic is left behind when Chris turns off the transport machine.

Sonic must save Tails from a tailspin.

Sonic returns to his planet after releasing the seven chaos emeralds into space.

Cosmo reveals the mission of the Metarex.

Sonic is captured by the Metarex.

Sonic and the others see through Eggman's trick.

Sonic and friends are back on the hunt for Chaos Emeralds.

As Sonic crashes with Eggman onto a jungle planet, Amy rushes out to find him, and Cosmo and Cream follow.

Chuck finds a way to teleport material objects to Sonic's world, and Vanilla asks the Chaotix to help wend them to Chris.

The crew of the Blue Typhoon go emerald hunting on a deserted planet.

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

After the battle with Metarex's Scarship, the Blue Typhoon crashes onto a strange planet.

Sonic and Eggman agree on a joint effort to retrive the last two Chaos Emeralds hiden inside a Metarex fortress.

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

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

As they travel through the Intergalactic Cloister, Sonic and the others battle Yellow Zelkova.

Sonic and friends come across a barren planet with 500 Chaos Emerald signals coming from it.

While traveling through space, Dr. Eggman and his forces come across a group of humans battling the armada of Pale Bay Leaf.

Sonic and the others finds a race called Marmolians and head to their home planet.

The Blue Typhoon comes under attack from the Metarex fleet.

The Chaotix trio tries to aide Sonic and his friends as Metarex hunts for them.

The Blue Typhoon arrives at a planet, but Yellow Zelkova attacks the Blue Typhoon.

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

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.

Sonic and the others chase after Dark Oak to galactic coordinates 0-0-0, where a thousand-year prophecy will bring their plan to fruition.

After Sonic falls into the watery planet, the gang struggles for a way to rescue him and defeat Dark Oak.

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

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