

22 Episodes
- Once Upon a Time MachineE2
Once Upon a Time MachineSet up as a follow-up episode, Hokum Hare and the Turtles hitch a ride on a time-traveling train to 2036, where they discover that Shredder has plans for the future New York City. Ultimately, the Turtles of both the past and the future must team up to thwart Shredder before his actions cause all of time to be destroyed. - Michaelangelo Meets Mondo GeckoE4
Michaelangelo Meets Mondo GeckoMichaelangelo awakes in the middle of the night from a bad dream. Unable to remember what it was about, Splinter assists him through hypnotism. Mikey vividly recalls the day that he and his brothers fell into the sewer and landed in the green ooze but he also sees a small lizard crawling through the contaminant. - Enter: Mutagen ManE5
Enter: Mutagen ManIn the frozen tundra of the Arctic Polar Cap, Krang rants and raves that Rocksteady and Bebop will not return in time with the Bindex 3 to load the mutagen into the rocket ship's fuel tanks before lift off. Krang' plans turn all the City's inhabitants into horribly disfigured mutants from the vapor trails of the fuel used to lift the rocket. - Donatello's DuplicateE12
Donatello's DuplicateDonatello decides to create a clone of himself so that he can spend more time on his inventions while his clone spends more time fixing things around the Lair. Donny tests his latest invention on a sewer rat and accidentally gets his hand in the way, causing the rat clone to talk just like Donatello. - The Ice Creature ComethE13
The Ice Creature ComethWhile the Turtles do battle with a refrigerator that has not been defrosted lately, Rocksteady and Bebop decide that they want to be the top mutants at the Technodrome and throw out a vat of mutagen onto the frozen tundra, creating a giant Ice Creature. - Zach and the Alien InvadersE17
Zach and the Alien InvadersZach, the Turtles' young friend, and honorary fifth Turtle, is infatuated with comic books, especially 'The Alien Invaders.' Zach retires his Turtle costume when his parents enroll him in the Ten-Hut Military Academy where they hope he will learn some discipline and live in the real world. - Planet of the Turtleloids, Part 2E22
Planet of the Turtleloids, Part 2The turtles unmask the dragon as they prove that the menacing creature is actually operated by two renegade Turtleoid delegates. Kerma return the turtles back to Earth, where they destroy Shredder's new Technodrome Mark II and afterwards defeat Chrome Dome.