The Team meets a strange alien robot called the Fugitoid.
When the Team crash lands on an ice moon along with the enemy, they must put their differences aside to survive.
When Casey discovers a hypercube, he unleashes a 4th dimensional being: Wyrm.
When Lord Dregg hires a bounty hunter to destroy the Turtles, the team flees to an abandoned space station.
The Turtles find themselves on a planet of pure evil.
When microscopic aliens invade Mikey's mind, the Turtles have to chase them through the strange world of Mikey's subconscious.
The Turtles are captured and thrown into the Triceraton Arena!
The Turtles must gain the trust of the Utrom Council in order to find the next piece of the black hole generator.
The Turtles journey through the cosmic ocean of Varuna, where they must proves themselves worthy to Hiidalra.
The Turtles are transported to another dimension, where they meet their 80's alternate-reality counterparts.
Donatello is feeling inferior to Fugitoid, but his intellect is put to the test when the Triceratons attack!
When Raph loses his fighting mojo, he must overcome his feelings to save his brothers from certain doom.
The team must overcome impossible odds to acquire the final Black Hole Generator piece.
As the team finally reaches Earth, Fugitoid reveals a horrible secret about his past.
When April graduates to full Kunoichi, she faces a deadly new enemy, while the Turtles face the return of some old, dangerous foes...
When Leonardo secretly allies himself with Karai, he gets himself into deeper danger than he could have realized...
The team faces Stockman-Fly's new insect minions, and Raph has to man up to overcome his fear of insects and lead the team.
Don Vizioso's gang tracks the Turtles with a slew of Anti-Mutant weapons!
Mikey befriends two odd new Superheroes, Wingnut and Screwloose!
For the first time, the Turtles encounter something they cannot defeat - the Super Shredder!
The Turtle team hunts for their Sensei, but soon realize they are being hunted as well.
A concerned Donnie tests April to discover her psychic abilities are rapidly growing in power.
Raph's bonding with little Chompy is interrupted by the invasion of Tokka, who has come to Earth searching for him.
A mysterious new enemy with superhuman speed is on the hunt for Tiger Claw, and will take out whoever stands in her way.
Splinter must lead the Turtles and the Mighty Mutanimals on the hunt to defeat his old enemy.
The Turtles realize they must stop Shredder... and end this conflict once and for all.
The Turtles believe they have defeated their old enemies, but they soon discover a new evil is rising. Guest Voice: Mark Hamill as Kavaxas
Karai searches for the Kuro Kabuto, claiming to be the rightful heir to the Foot Clan, when she encounters an old rival.
Donnie’s grudge against Don Vizioso threatens the Turtles’ mission.
The Turtles must defeat Kavaxas and prevent him from destroying the world.
When Splinter is first mutated, he must learn to survive the life of a mutant on the run while also protecting four baby mutant turtles.
The Turtles’ plans to enjoy Halloween are put on hold when strange monsters threaten to transform the city.
Renet transports the team to Transylvania to stop Savanti Romero.
Savanti is soon to recruit Frankenstein’s Monster and unleash all of his creatures on the 21st Century.
When the Turtles return to a world run by monsters, they realize they may have made the situation even worse.
When Mona Lisa suddenly arrives on Earth, Raph’s eagerness to help her could end up getting the team into even bigger trouble.
Raph must get Mona Lisa and Bishop to work together to defeat an alien threat and save the Earth.
When 80’s Shredder and Krang appear in our dimension, they employ Bebop & Rocksteady and find their plans are succeeding better than ever.
The Turtles must train their 80’s counterparts to face a greater threat than they’ve ever encountered.
The Turtles enlist the help of the Mighty Mutanimals to stop Bebop and Rocksteady.
The Turtles are transported to an alternate dimension where they meet the rabbit samurai, Miyamoto Usagi.
Usagi leads the Turtles through a haunted forest where they encounter mischievous and dangerous spirits.
As they reach their destination, Usagi and the Turtles must help Kintaro fulfill his destiny.
An older weathered Raph battles road gangs in a post-apocalyptic mutant wasteland.
As they roam the desert wasteland, the team searches for a mysterious hermit, who is the key to finding the mythical Oasis.
Raph must fight the leaders of the road warrior clans to gain their loyalty, before they face their biggest enemy yet on their way to Oasis.