List of Teenage Mutant Ninja Turtles: The Fifth Mutation episodes

Season 1

 * 1) The Next Mutation - Leonardo, Raphael, Donatello and Michelangelo have suddenly noticed higher military presence in New York as Raphael decides to investigate, finding a fifth turtle known as Jennika as the Turtles have to decide if they want to train her like Splinter did to them while one of the military operatives, Megavolt, brings the hunt for Jennika to the Turtles.
 * 2) Trust Exercise - The Turtles continue their training of Jennika as a fight between her and Leo causes Jennika to run away. This ends up causing both Raph and Mikey to try and find her as well as Jen finding a street punk known as Irma as the four of them have to work together when the mutants Dirtbag and Groundchuck attack.
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 * 21) The Shredder Returns - A ghost from the Turtles's past, the Shredder returns as the four brothers head to face Shredder alone, believing Jennika to not be ready for it. Things get worse when the mysterious trickster known as the Rat King lures Jennika away.
 * 22) Of Mice and Mutants - Raph learns that Jennika is missing and heads awol to find her while the other turtles try to find Raph but get stopped by the Shredder who claims that he is not done with them. Meanwhile, Jennika is captured by the Rat King and learns he plans on using her body to resurrect his sister, the Kitsune.