Beyond the Known Universe
E1
The Moons of Thalos 3
E2
The Turtles and their enemy crash-land on an ice moon and they must put aside their differences in order to survive.
The Weird World of Wyrm
E3
Casey releases a wish-granting alien named Wyrm, who wants his freedom to do whatever he wants to the universe
The Outlaw Armaggon!
E4
A shark-like bounty hunter is hired by Lord Dregg to destroy the turtles, who choose to hide out in an abandoned space station.
Riddle of the Ancient Aeons
E5
Journey to the Center of Mikey's Mind
E6
The Arena of Carnage
E7
The War for Dimension X
E8
The Turtles must gain the trust of the Utrom Council in order to find the next piece of the black hole generator.
The Cosmic Ocean
E9
The Turtles journey through an ocean-like area of space.
Trans-Dimensional Turtles
E10
The Turtles are transported to another dimension where they meet their 1980s counterparts and work together to battle Krang.
Revenge of the Triceratons
E11
Donatello is feeling inferior to Fugitoid, but his intellect is put to the test when the Triceratons attack.
The Evil of Dregg
E12
When Raphael loses his fighting mojo, he must overcome his feelings to save his brothers from certain doom.
The Ever-Burning Fire
E13
The team must overcome impossible odds in order to obtain the final Black Hole Generator piece that is located on the planet Magdomar.
Earth's Last Stand
E14
City at War
E15
Broken Foot
E16
When Leonardo secretly allies himself with Karai, he gets himself into deeper danger than he could have realized.
The Insecta Trifecta
E17
Raphael must overcome his fear of insects to lead the team when they are forced to battle Stockman-Fly's new insect minions.
Mutant Gangland
E18
Don Vizioso's gang tracks the Turtles with a slew of Anti-Mutant weapons.
Bat in the Belfry
E19
The Super Shredder
E20
For the first time, the Turtles encounter something they cannot defeat – the Super Shredder!
Darkest Plight
E21
The Turtle team hunts for their Sensei, but soon realizes they are being hunted as well.
The Power Inside Her
E22
Donatello becomes concerned and decides to test April, only to discover that her psychic abilities are rapidly growing in power.
Tokka vs. the World
E23
Tale of Tiger Claw
E24
Requiem
E25
Owari
E26
With the demise of their beloved father and Karai incapacitated, the Turtles, April, and Casey, infiltrate Super Shredder's new lair to put an end to Oroku Saki once and for all, no matter what it takes.