Episode 1
Sonic frees a prisoner who has been locked at Robotnik's Fortress for 30 years who wants to find his long lost girlfriend which Robotnik also loves.
Episode 2
Robotnik creates a robot fox family when he finds out that Sonic is trying to find Tails a new home to keep him safe.
Episode 3
Robotnik buys new gadgets from an enterprising salesman to help Scratch and Grounder catch Sonic, but winds up regretting his purchases when they keep backfiring.
Episode 4
Robotnik is after the Power Gems from the city of Submerbia and Sonic and Tails are hired to stop him.
Episode 5
Robotnik creates a robot Sonic suit in order to ruin his reputation.
Episode 6
Robotnik fools Captain Rescue into capturing Sonic after the aging superhero lets his guard down, so Tails must convince Rescue to be his old self again in order to save Sonic.
Episode 7
An asteroid is heading for Turtle Town and Robotnik offers to save it, but only if Sonic agrees to play in the Robolympics against him and his robots.
Episode 8
When Sonic saves a female hedgehog named Breezie, he falls in love. Sonic does not know that Breezie is a robot that Dr. Robotnik created to keep Sonic occupied while he floods a village near his fortress.
Episode 9
Sonic and Tails escape underground from Scratch and Grounder, but they are held captive there by a miserly mole named Spelunk.
Episode 10
Grounder accidentally puts a "genius chip" in his head and it makes him so smart that he easily captures Sonic and even takes over Robotnik's operations.
Episode 11
Sonic and Tails infiltrate Robotnik's new Casino Night Zone to stop him and his henchmen from scamming a group of sheep into becoming Robotnik's slaves.
Episode 12
Scratch suffers a blow to the head and believes that he is his favorite television character, Edgar Eagle. Sonic uses this to his advantage in preventing another one of Robotnik's schemes.
Episode 13
Robotnik reprograms a machine created by Von Schlemmer capable of bringing dreams into reality and unleashes a dream monster upon Mobius.
Episode 14
Sonic tries to save a gorilla that is under Robotnik's control, while Coconuts finds the gorilla's lost baby and plots to use it against Sonic.
Episode 15
On the way to stop a train of explosives from arriving at Robotnik's munition factory, Sonic and Tails must deal with a duo of bears named Big Griz and Mad Mike after Scratch and Grounder tell them that Sonic and Tails are the enemies.
Episode 16
Robotnik's obnoxious mother visits her son on her birthday and expects a present. After he fails to destroy a nearby forest as a present, however, she decides to capture Sonic as her own gift.
Episode 17
Sonic must save a family of sloths from Dr. Robotnik's slow-motion ray. But when he himself is slowed down by Scratch and Grounder, Tails and the sloth family must take action.
Episode 18
Tails adopts a squishy creature from another dimension named Goobster, who turns out to be a black hole.
Episode 19
Robotnik and a rival named Brandon Quark try to cooperate in capturing Sonic. However, Sonic tricks them into becoming enemies, and they try to outdo each other.
Episode 20
Robotnik's insane cousin, Dr. Warpnik, captures Tails and lures Sonic into his Zone of Confusion in order to enact revenge on Robotnik for banishing him.
Episode 21
Momma Robotnik visits her son, and after he fails once again, she disowns him and decides to adopt Sonic as her own son in order to capture him.
Episode 22
Tails gets a megadose of Robotnik's growth gas and grows quickly to monstrous proportions, eating everything in sight and terrorizing the countryside.
Episode 23
When Sonic and Tails are captured by Scratch and Grounder, Sonic creates a diversion by telling the duo the story of their creation.
Episode 24
Sonic becomes the sheriff of Tranquil Gulch, in hopes of keeping Robotnik's robots from harassing the locals.
Episode 25
An intergalactic huntress visits Mobius, capturing various citizens and falling in love with Robotnik.
Episode 26
When Scratch and Grounder use Robotnik's latest invention to turn Sonic to stone, Tails attempts to foil the duo to ensure Sonic's safety.
Episode 27
Robotnik's attempt to cause Sonic to age rapidly with his newest device backfires, turning him and Tails, and later himself, into babies.
Episode 28
Robotnik pursues Breezie and Robotnik Jr. in order to find out why they betrayed him with the intent of building a perpetually loyal robot wife.
Episode 29
Robotnik has unleashed his Stupidity Ray on Mobius, knowing that the newly-stupefied Mobians will be too brain dead to stop him.
Episode 30
Robotnik seemingly announces his surrender to Sonic, and he invites him to a resort in his gratitude.
Episode 31
Robotnik constructs a pushy robot coach in an attempt to increase Scratch and Grounder's fitness.
Episode 32
When Robotnik opens up a resort to make resident Mobians his slaves, Sonic enlists the help of some robots from an area of Mobius called Scrap Valley.
Episode 33
Sonic and Tails help an alien prince fix his space shuttle so he can return to his home planet for his coronation before his younger brother is crowned in his place and has Mobius destroyed.
Episode 34
On Sonic's birthday, Tails builds a flying bicycle. Realizing Tails' potential with mechanics, Professor Von Schlemmer invites Tails to be his research assistant.
Episode 35
Robotnik constructs a robot son in order to help him with his conquest of Mobius.
Episode 36
Coconuts acquires a magic wand and magical gadgets from Wes Weasley, and attempts to master them.
Episode 37
Robotnik goes time-traveling to find the four Chaos Emeralds that bestow the user unlimited power. His first stop is the time of Blackbeard the Pirate, where he enlists the pirate's help to find the first emerald.
Episode 38
Robotnik's next stop in his time-travel is the Middle Ages, where the second emerald is. Sonic follows him, but Robotnik, with the unwilling help of a local wizard, obtains the emerald and takes over the kingdom.
Episode 39
In his next time-travel stop, Robotnik plans on erasing Sonic's family tree in order to get the third emerald.
Episode 40
Despite the intervention of Sonic and Tails, Robotnik obtains the fourth and final emerald in prehistory. With the emeralds gathered together, Robotnik uses them to become an all-powerful being.
Episode 41
Sonic comes to the rescue of a town that is held for ransom by Robotnik's crime syndicate.
Episode 42
Robotnik imprisons a satirical cartoonist for making fun of him in his comic book, much to the chagrin of his biggest fan, Sonic.
Episode 43
Scratch and Grounder use a ray gun Robotnik invented to transport Sonic, Tails, and Robotnik into a book of fairy tales.
Episode 44
During a fair in his honor, Sonic's shoes are stolen and he and Tails use detective intellect to find the thief.
Episode 45
A chemical accident caused by Coconuts ends up giving superpowers to Robotnik, who quickly uses them to threaten Mobius's world leaders and publicly humiliate Sonic.
Episode 46
Robotnik threatens to demolish an airport, a lighthouse, and a train station. Sonic is forced to travel to all three places in order to remove the bombs.
Episode 47
Robotnik sends Scratch and Grounder into space to pillage the asteroid belt, with Sonic and Tails in pursuit.
Episode 48
Robotnik attempts to brainwash MacHopper, a friend of Sonic's into doing his dirty deeds, but an explosion causes his memory to become unstable.
Episode 49
Sonic and Tails babysit a trio of unruly baby beavers who end up being abducted by Scratch and Grounder.
Episode 50
Robotnik makes chewing gum that makes the consumer as fast as Sonic.
Episode 51
When Throbbin Screech features Sonic on his talk show, Lifestyles of the Very Good, Robotnik kidnaps his niece in order to be featured on the show.
Episode 52
Sonic and Tails get arrested for speeding due to Robotnik's nefarious hypnotizing scheme.
Episode 53
Sonic and Tails enter a car race in order to save an orphanage that Robotnik threatens to shut down.
Episode 54
Sonic, Tails and a group of mole miners are hit by Robotnik's shrink ray and must work together to reverse the effects.
Episode 55
Outraged by a popular song about Sonic, Robotnik outlaws music on Mobius and takes the song's composer captive with the intent of creating his own song.
Episode 56
Robotnik plans to freeze all of the Mobians in order to make them obedient.
Episode 57
When Momma Robotnik threatens her son into campaigning for the Mobius presidency, Sonic decides to run against him.
Episode 58
Robotnik forces a starving village of rabbits into building a statue of himself.
Episode 59
Robotnik takes control of the local amusement park on Sonic's birthday and uses it to try to finish him off.
Episode 60
Sonic and Tails help a mermaid hedgehog named Merna save her underwater city from the wrath of Captain John Paul Memo.
Episode 61
Robotnik captures Kwai Chang Crane, a martial arts master, and uses him to turn Scratch and Grounder into effective ninja to defeat Sonic.
Episode 62
A pickpocket named Easy Eddie picks at Robotnik's Chaos Emerald ring, much to his anger. Sonic must keep Easy Eddie hidden so that he can discard the ring.
Episode 63
When Sonic mysteriously vanishes, Tails, Professor Von Schlemmer, and a pilot named William le Due search for him in the Pyramid of Kommamachs.
Episode 64
Scratch and Grounder build a robot of their own who soon runs away and ends up befriending Sonic.
Episode 65
Wes Weasley has sold out to Robotnik, and lures Tails, Sonic and all of their friends to a yacht under the guise of a "Hero of the Year" ceremony to thank Sonic.
