Dr. Eggman udløser en eksplosion med den sidste Kaos-smaragd og transporterer Sonic og hans venner til en verden beboet af mennesker.

Med hjælp fra Chris' bedstefar Chuck må Sonic redde sine venner Cream and Cheese, der bliver holdt fanget i en militærbygning.

Da Eggman angriber med et E-23-missil, prøver Wrist, Tails, Chris og Amy at skyde missilet ned. Men den stærke robot er en hård modstander.

Præsidenten sender en spion til Chris' skole forklædt som lærer. Da der bliver fundet en Kaos-smaragd, kæmper både Eggman og Sonic om at få fingrene i den først.

Efter Eggman snød ham, bebrejder Knuckles Sonic for, at han er fanget i menneskenes verden, og udfordrer Sonic til kamp.

Eggman sender en robotlærer ud for at hjernevaske Chris og hans klassekammerater, men robotten holder sig ikke til pensum.

Eggman opdager, at militæret udspionerer ham, og sender sin E-90-robot i rummet for at ødelægge alle satellitter. Så er det slut med tv for alle mennesker på Jorden!

Chris og hans venner tager på stranden. De bliver dog afbrudt, da Eggman crasher festen og sætter robotter til at bygge et feriested til sig selv.

Tails finds another Chaos Emerald, but in order to get it Sonic and pals(including Tails) must win a very odd baseball game against Eggman and his robot's. Or is Eggman just tricking them so he can get all the loot even if he doesn't win?

A jewel theif is on the loose-Rouge The Bat. And she plans to steal the Chaos Emeralds by tricking the goverment, by working with them, and pretending to help infilitrate Eggman's Fortress, when she really just plans to steal the Chaos Emerald.

The President of The United States says his plans to defeat Eggman, while Knuckles trys to sneak into Eggman's base. Meanwhile Tails, Chris, Amy, and one of Chris' friends, Francine find another Chaos Emerald but Eggman shows up with his giant Wind Robot, and blows them away!

Rouge, Topaz, Knuckles, and the goverment break into Eggman's base and try to infilitrate it while Sonic and pals try to infilitrate it as well, and get the Chaos Emerald back. But Eggman has a huge suprise in store for Sonic...

After destroying Eggman's base Sonic has become a huge celeberity and the President invites him and his friends to a party but Sonic has promised his new friend Helen that he'd take her to a mountain because her dad never did. Now the president is trying to catch Sonic and take him to the party and Sonic and Helen are on the run!!

Ella decides to take Amy, Tails, Chris, Cream, and Cheese out to the mall, but they see the return of Eggman, and his new Egg Fortress. Eggman launches some missles to the City, and it's up to Sonic to stop them. They end of defeating Eggman, and him and the Egg Carrier fall to the deep ocean....

Sonic, Tails, Cream, Cheese, and Chris discover that a Chaos Emerald is in the Ocean of a Motel, so they go on a vacation try to find a Chaos Emerald in the deep Ocean but it turns out that Eggman is under the sea, and ready to attack, trying to get the Chaos Emerald too.

Knuckles has been traveling for days to reach a small town, to see his friend Hawk, and get another Chaos Emerald. They must prevent Rouge or The Fly Thief from getting it and Knux may even have to throw in some punches.

Sonic, Chris, and Tails attempt to destroy Dr. Eggman's Egg Fort, but get the Tornado shot down and they get separated!! Now Tails, and Chris must stop some Damworkers from building a Dam that will block electricity, while Sonic must defeat Eggman's Giant Robot Monkey that can become invisible!!

Chris' mom is doing part of a play in an old castle. While Sonic is walking in the castle, all of the sudden, everything shakes all of the sudden. During the night when Lindsay is putting on her makeup, the mirror all of the sudden takes her alive. The gang goes about looking for her, when all of the sudden Ella is sucked into a wall. When trying to rescue her, Sonic and Tails are sucked in as well. Amy and Chris try and rescue everyone. They figure out that a stone has something to do with this.

After many weeks of looking for Chaos Emeralds, Nelson suggests that everyone takes a break and goes for a cruise on one of his spare yachts. However, the ship isn't big enough for Sonic to run on, at all. Everyone is worried, so an airlift is called in to send Sonic away, but Tanaka is on it, and he has a group of elderly women on board. He says they will be their coaches, guiding them on how to relax, leaving Sonic on the ship, just as he tricks Tails into thinking the X Tornado is lonely, and lies to Amy that she is the cutest thing he's ever seen (lol!). Just as the ship approaches the glaciers, the Egg Fort 2 launches for the first time with an attack.

It's the middle of the night. But Chris's Uncle can care less. Sam would like to challenge the speedy blue demon to a speed match; which he's not to interested in. He finally gives in to all the influences, and goes ahead, with the entire country watching this show down, as well as the president.

While exploring Tanaka's mountainous homeland, Cream and Cheese decide to take a swim. However Cheese is carelessly swept away down the river by a strong current, and the gang has to find him. When they reach the spot where they find Cheese, it's a beautiful, crisp lake inhabited by many chao that have been transported here as well. The gang begins to enjoy the company when unfortunately, Dr. Eggman is taking a hike too; and he plans to ruin the vacation!

Rouge and Topaz are 'hanging out' when Rouge spots some beautiful jewelry in the store across the street, but Topaz blurts out 'Thief!' just to anger Rouge. Then Nelson, Chris' dad buys a expensive ring in the store, because it's his anniversary with Lindsay, Chris' mom. Meanwhile, at the Thorndyke's Mansion, Sonic, Tails, Amy, Cream, and Cheese recieve a phone call from Nelson, telling them to go to his office. But Sonic gets a weird reaction from his Chaos Emerald that he's holding, and it turns out that the 'ring' is actually a Chaos Emerald! Knuckles sees the reaction and goes straight to help the gang. But in the shadows Eggman sees the reaction too and decides to jump in with his giant robot to steal the Chaos Emerald for himself!

Eggman comes in to the area disturbing the peace, but he's not match for blue. However, when Sonic is fighting, some sort of computer chip lands in Sonic's ear, causing him to pick his ears for the rest of the day (which Amy hates!). When a remote is pressed, Sonic goes berserk, and then begins to run fast and uncontrollably into the desert. The gang has to come up with ways to stop him, with the assist from Knuckles and Sam, but to their luck, they all fail, and Sam is no help either. What will they do?

Now we're on the wire. Six Chaos Emerald have been found, but Eggman has one, and plans to use his E-77 robot to seek out the last one. Meanwhile, Knuckles is looking for the Last Chaos Emerald too. He realizes that the only way for him, Sonic, Tails, Chris, Amy, Cream, and Cheese to get all the Chaos Emeralds is to team up with Eggman. So Knuckles visits the Thorndyke residance, but Sonic, Tails, Cream, Amy, and Cheese are out looking for the last Chaos Emereald as well, so Knuckles teams up with Chris to go to Eggman's base and ask for a partnership. Eggman agrees, but he asks if he can hold the Chaos Emeralds that they have, and foolishly Knuckles agrees. Chris and Knuckles try to keep it a secret from Sonic, Tails, Amy, Cream, and Cheese though. Meanwhile, it turns out that Eggman tricked him, and he steals the Chaos Emeralds for himself...as E-77 is returning with the last Chaos Emerald....what will happen next?

A very sad episode indeed. After a trap set last set by Dr. Eggman, Chris is held captive in E-99 on the shores while Sonic is trying his hardest to defeat it and get Chris back. However, with the power of seven Chaos Emeralds, it's not that easy. Sonic is bruised and beaten...badly. Chris can't stand the sight of his hero beat up, and actually breaks himself free to grab the emeralds and jump in the water to help Sonic. Behold! Super Sonic rises out and destroys E-99, and then a blast of Chaos Control is released, as Station Square watches in awe.