All 26 episodes from the second series of the children's CGI-animated cartoon tracing the origins of the sewer-dwelling, superhero foursome Leonardo, Donatello, Raphael and Michelangelo. The episodes are: 'The Mutation Situation', 'Follow the Leader', 'Invasion of the Squirrelanoids', 'Mutagen Man Unleashed', 'Mikey Gets Shellacne', 'Target: April O'Neil', 'Slash and Destroy', 'The Kraang Conspiracy', 'The Good, the Bad, and Casey Jones', 'Fungus Hummungous', 'Metalhead Rewired', 'Of Rats and Men', 'The Manhattan Project: Part One', 'The Manhattan Project: Part Two', 'Mazes and Mutants', 'The Lonely Mutation of Baxter Stockman', 'Newtralized!', 'The Wrath of Tiger Claw', 'Pizza Face', 'The Legend of the Kuro Kabuto', 'Plan 10', 'Vengeance Is Mine', 'A Chinatown Ghost Story', 'Into Dimension X', 'The Invasion: Part One' and 'The Invasion: Part Two'.