A slight malfunction causes Chaos Control, and sends Sonic the Hedgehog to Earth. While there, Sonic meets Chris Thorndyke, who aids at collecting the Chaos Emeralds, so Sonic and friends can go home.
Genre: Animation, Action, Adventure
Cast:Gabriella Lewis , Jun'ichi Kanemaru , Sanae Kobayashi , Jason Griffith , Suzanne Goldish , Ryô Hirohashi , Lisa Ortiz , Taeko Kawata , Amy Palant , Rebecca Honig , Bin Shimada , Mike Pollock , Darren Dunstan , Andrew Rannells , Sayaka Aoki , Chikao Ôtsuka , Ken Yamaguchi , Dan Green
The city's finest are put on high alert when a mysterious blue hedgehog suddenly appears in the middle of a down town intersection.
Cream and Cheese are captured and sent to military base Area 99. Now, it's up to Sonic and his new friend Christopher to save them.
When Eggman tries to use E-23 to take over the world Amy, Knuckles and Tails launch an unsuccessful counterattack, until Sonic arrives, and with a ring from Tails, destroys E-23 and saves Amy with the help of Knuckles.
Chris' teacher is replaced with Mr. Stewart, the President's spy, and the first Chaos Emerald appears at a construction site, it's then a race to the emerald between Eggman and Sonic and friends, with Chris stealing it from Eggman's mobile, and Sonic rescuing him from a nasty drop.
After Eggman tricks Knuckles into blaming Sonic for being stuck in the human world, Knuckles challenges Sonic to a duel allowing Eggman to capture Chris, Amy and Tails using E-47, but Knuckles realizes he's being duped and teams up with Sonic to destroy the robot and save the others.
Eggman tries to use his robot, Intelligente, to brainwash Chris' class but when Intelligente winds up teaching more than brainwashing, Eggman steps in to put the children in permanent detention until a worried Sonic arrives, destroys the robot and saves the class.
When Mr. Stewart drops by for a surprise visit, Chris and Chuck are able to keep Sonic and Friends' stay a secret but after the S-Team Leader, Chris' uncle, arrives things get messier and everyone including Ella and Mr. Tanaka find out Chris' secret.
After Eggman discovers that he is being watched by the military he sends E-90 to swallow the satellite, but this disrupts all television so Chuck and Tails turn Tornado into Tornado X allowing Sonic to enter space and destroy E-90.
After Chris, Amy, Cream and Cheese arrive at a resort, Eggman appears and tries to take over but Sonic arrives and tries to stop him only to be saved by Amy from E-39.
It's Team Sonic vs Team Eggman in a baseball game for a Chaos Emerald, Team Sonic falls behind at first but then wins with a Sonic super-play, only to have Eggman steal the Emerald in the end.
The President plants a fake emerald to try and attract Sonic but Rouge takes the bait instead and winds up searching Eggman's base, with Topaz, for a Chaos Emerald, until she encounters E-70 and has to make an escape.
Tails and Chris discover the third Chaos Emerald in a field and fly for it in the X-Tornado but Eggman and E-51 catch up and trap them, meanwhile Rouge and Topaz launch an attack on Eggman's base.
Sonic saves Tails and Chris from E-51 while Eggman makes off with the Chaos Emerald, at Eggman's base Knuckles appears and helps Rouge plant explosives but they end up trapped. Sonic arrives and is attacked by Eggman and E-18 but Eggman drops the emerald and Sonic grabs it and destroys the robots and Eggman's base.
Sonic decides to take his new friend Helen to pick flowers instead of attending the President's party. The President's aide responds by sending a military unit to capture Sonic.
Rising from the rubble of his former base, Dr. Eggman reveals his new battleship, the Egg Fort, and attacks Station Square. Sonic faces off his nemesis once again on the X-Tornado.
The President demands the search for Dr. Eggman after Sonic destroys the Egg Fort. Meanwhile Sonic and his friends are taking a well-deserved vacation where they discover that another Chaos Emerald is nearby.
Knuckles rescues a man named Hawk from ancient ruins. Discovering later that Hawk had discovered a chaos emerald, Knuckles seeks for him once again in Oriental City. There he is confronted by a local thugs Li Yan and the Bruiser Boys.
When Sonic, Tails, Chris and the Egg Fort crash land on the Nature Continent after a fight, Tails and Chris protest against a dam while Sonic is caught in a battle against Decoe, Bocoe, E-65 and Eggman.
Chris' mother Lindsey is shooting a movie in a castle and Sonic and his friends are there too. They begin to notice that something is amiss as ghostly figures begin to appear.
Sonic and his friends are on a cruise when the Egg Fort appears inside a glacier. As Sonic faces his foes he receives some help from Knuckles.
Sam Speed challenges Sonic to a race on his new racing car. After much plodding Sonic accepts the challenge but Eggman decides to interrupt the whole thing with his newly invented robot Sumo-Man.
Sonic and his friends are at a camp site where they discover a Chao colony. Meanwhile, Dr. Eggman is also hiking nearby and decides to launch an attack when he encounters Sonic.
Chris' father Nelson purchases a ring made from a Chaos Emerald for his wife Lindsey. Being made aware of its presence, Dr. Eggman attempts to snatch the emerald away from them.
After an encounter with Dr. Eggman, Sonic finds himself unable to stop running. Chris and his grandfather Chuck soon discover that Eggman's E-88 is behind Sonic's problem.
Chris finds himself depressed at the prospect of his friends returning to their home world despite knowing that that is what's best for them. Knuckles meanwhile attempts to orchestrate a truce between Sonic and Eggman so that they may all return home.
Eggman takes Chris hostage after tricking Knuckles and Chris into giving him all six Chaos Emerald. Eggman and Sonic face off once more as Sonic seeks to save Chris and prevent Eggman from obtaining the final emerald.
When Big the Cat and Froggy discover a Chaos Emerald, a strange blue liquid takes over Froggy's body and runs away with the Chaos Emerald. Meanwhile, Lindsey offers Cream with another Chaos Emerald that she had obtained from a jeweler.
Knuckles recalls how Chaos destroyed the Master Emerald. Suspecting that Chaos is controlling Froggy, the gang decide to head their own ways in search of rescuing Froggy and recovering the Chaos Emerald.
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.
Sonic, Tails and Knuckles battles Dr. Eggman on Egg Carrier to save Amy and for the last piece of Master Emerald. Meanwhile Chris and Big are still in search of Froggy.
As Tails is given a hero's welcome after saving Station Square from Eggman's missile attack, Gamma decides to deprogram the mission given to him by Dr. Eggman and assigns himself a new one: to find his E-series brothers and to rescue their animals.
Dr. Eggman reveals to Sonic that he had been double-crossed by Chaos. As Knuckles warns Sonic of dangers of Chaos if he was to obtain the last Chaos Emerald, they are transported to the past by a mysterious red orb.
As he hacks GUN's computer database, Dr. Eggman discovers his grandfather's mysterious "Ultimate Life Form" project named Shadow.
Sonic is accused of causing havoc in Prison Island. As GUN agents seek after Sonic, Sonic attempts to figure out who had framed him.
While Sonic is held captive in Prison Island, Dr. Eggman appears in search for Chaos Emerald alongside Rouge and Shadow.
After the destruction of Prison Island, Sonic searches for Chris whom Amy suspects was taken to Dr. Eggman's secret base by Shadow.
Sonic and Shadow face off while the rest of the crew seek Dr. Eggman who is now in posession of seven Chaos Emeralds. As the battle unfolds, Knuckles take on Rouge for the control of Master Emerald.
To complete his final revenge, Dr. Robotnik's revenge was to crash ARK into earth, destroying everything and everyone. Sonic must now convince Shadow to help save the world from destruction.
Sonic's world and its creatures called Flickies begin to appear in Chris' world. As the President and his staff discuss how to keep them isolated; Chris worries about what they might do with Sonic.
Sonic and friends readies to ring in the new year on the Thorndyke yacht. As the first sun begins to rise, Egg Moon appears to block the year's first sunrise.
As the President sends in GUN forces to stop Sonic from destroying the Mirror Towers, Dr. Eggman reveals that his Sunshine Balls are secretly brainwashing the citizens to turn against Sonic.
When Sonic stands Amy up on a date she decides to go out with Sam Speed instead. Meanwhile Bokkun reactivates a robot named Emerl to free Eggman from jail.
As Nelson tries to maintain the faltering Thorndyke Industries due to his employees joining the Freedom Movement to emulate Sonic's carefree lifestyle, kitchen appliances begin to cause havoc around town.
Eggman is on the loose and everyone is searching for him. While Mr. Stewart investigates Eggman's whereabouts he is captured along with Chris in Eggman's secret hideout in the sewers.
President hosts a tournament with red Chaos Emerald as the prize to lure Dr. Eggman. It's a heated battle that finds Sonic fighting alongside everyone, even the President himself, but strangely Dr. Eggman has yet to show...
The battle for the red Chaos Emerald is heating up. As contestants duke it out for the glory and the prize it's Emerl who wins the tournament. But when Emerl receives the emerald, its power forces him to go on a rampage and attack everyone in the stadium.
When Dr. Eggman learns that Knuckles has just discovered the oldest map in the world, which holds the location of the lost continent of Murasia, he sends Decoe and Bocoe on a mission to take the map away from Knuckles.
Sonic and his friends are in pursuit of Dr. Eggman who has fled into the volcano which lies at the world's bellybutton. They come upon the Murasians ruin which attributed its destruction to a supposed dragon god.
Dr. Bickley discovers that Sonic's world and theirs were once one and the same. As the two world slowly completes its reunification, she realizes that the process would ultimately cause time to stop. The only solution? Send Sonic and the rest back home.
As Chris spends his last day with Sonic while they prepare for their trip home, President's army colonel decides to act on his own to capture Dr. Eggman.
Chris is unable to come to terms with the idea of parting with Sonic and decides to run away with Sonic. As the time runs short for Chaos Control to send Sonic back to his world before the two worlds merge, Chris and Sonic say their good byes one last time.
With everyone back in their home worlds the crisis has been averted and all seems to be back to normal. Except, no one seems to know where Sonic is. His friends and even Eggman begins to wonder where the blue hedgehog might be.
Sonic activates Chaos Control in his battle against Dark Oak, most formidable enemy he's faced thus far, to scatter the Emeralds across the galaxy. Meanwhile, Tails, Amy, and Cream encounter a spaceship that's crashlanded to their planet during a meteoer shower.
Chris returns to Sonic's world as his twelve year-old, joining Sonic and his friends to stop Metarex from destroying their planet.
As Sonic continues his journey aboard Blue Typhoon for the Chaos Emerald, they arrive on Planet Secco, a planet that's supposed to be bone dry and yet is now filled with water.
Sonic and his friends are the guests of honor at a feast for saving the planet. Dr. Eggman, observing the celebration, begins to plot his next scheme to steal away the Chaos Emerald.
Continuing the search for Chaos Emeralds, Sonic, and soon after Dr. Eggman, heads for Planet Breezy but is faced with an attack from Metarex.
In pursuit of Metarex who had stolen Planet egg on a jungle planet, Sonic gets thrown down to the planet. Worried Amy, Cosmo, Cream, and Cheese organize a search party in order to find Sonic.
Chuck finds a way to teleport supplies from his world to Sonic's. When the supplies are received by Vanilla, she asks Chaotix to deliver them to Chris. Now aboard the spaceship sent also by Chuck, Chaotix are off for a special delivery.
Rouge, aboard Crimson Egg, makes a discovery of a secret room that carries a strange capsule powered by a Chaos Emerald. Much to her surprise she discovers that Shadow is hibernating inside.
As Shadow tries to recall who Sonic and his friends when a Metarex named Scarship arrives to complete its newly assigned mission: to destroy Sonic and Dr. Eggman.
Blue Typhoon has found a new planet that may harbor another Chaos Emerald. Tails, Cosmo, and Knuckles explore in search of the emerald when they come across an abandoned city.
Discovering that the last two Chaos Emeralds are inside a Metarex fortress, Dr. Eggman suggests a truce between him and Sonic to work against their common foe.
Sonic faces off against Dark Oak once again, Eggman has taken control of Blue Typhoon and outside the fortress are Metarex armada led by Red Pine. The situation can't seem to get any more dire when Red Pine and his crew begin to attack their own base.
As Amy wonders about fate of Shadow and the rest of the crew begin to fix things up around Blue Typhoon, they come across a Chaotix ship who had been drifting in space since they last made their delivery to Chris.
Despite not knowing how it might affect Chris, the crew decide to travel through Intergalactic Cloister in hopes of reaching Metarex. The intense distortions inside the cloister knock everyone out.
Metarex have been following Blue Typhoon for 12 hours now. With no signs of attacks, Sonic begins to wonder if they are being led into a trap.
When Shadow destroys the fleet of Metarex and saves Molly inadvertently, he and Dr. Eggman are welcomed by the revolutionaries against Metarex. Attempting to capitalize on their gratitude, Dr. Eggman decides to take the planet's Chaos Emerald.
Sonic finds a meteor in space while on search for another Chaos Emerald. When Tails brings the meteor in, they discover it to be a space ship with small Chao-like creatures aboard.
Blue Typhoon attempts to save a small ship caught in the crossfire between them and the Metarex. Unfortunately the pilot aboard the spaceship was Decoe, who was acting as a decoy to lure Sonic into the path of Megarex fleet led by Dr. Eggman.
Chaotix still aren't able to find their home. Upon taking a wrong turn in space, they've landed on a planet where they are now running a café in order to raise money for the ship's repair. All seems to be going (relatively) well when Dr. Eggman shows up with an offer of reward for Sonic and his crew's capture.
Blue Typhoon is under attack by Yellow Zelkova who is equipped with a special energy shield built by Dr. Eggman. Sonic and his crew are sent crashing down to a nearby planet where Knuckles and Sonic attempt to destroy the powerful weapon.
Shadow breaches Blue Typhoon, appearing in Cosmo's room. As he knocks Sonic and Chris unconscious, Shadow goes after Cosmo whom Tails has taken away to safety.
Blue Typhoon is mysteriously transported to an abandoned planet as Cosmo discovers that Metarex are monitoring what she sees and hears through a chip that is implanted in her. As Tails and Chris try to find a way to remove Cosmo's chip, Amy and Rouge discover that the planet is Cosmo and Metarex's home planet.
When everyone is informed by Dr. Eggman of Metarex' gathering in accordance to a thousand-year prophecy Sonic and his crew head off for their final battle, leaving Shadow behind. However Shadow soon follows suit as Chaotix drop by to offer him a ride.
With Sonic being knocked down to Planet Aqurius and Dark Oak still continuing the evolution to its final form, Knuckles and team come up with a plan to cut off Dark Oak's energy by firing the Master Emerald at Metarex.
Metarex seed continues to grow into its final form and Sonic and his team are unable to stop it. As Chaotix collect Chaos Emerald now drained of its power, Dr. Eggman reveals a plan to restore their power.
With the sacrifice of Cosmo, Dark Oak has finally been destroyed. The crew mourns the loss of Cosmo though they are quickly faced with another trouble as the Planet Egg begins to release its explosive energy.
