NickTOONS

'S2/E2 - Follow the Leader'. When the Turtles face Shredder's newest threat - an army of Robot Foot Soldiers - Karai captures Leonardo and forces him to do battle with these new and improved ninjas.

'S3/E2 - 2/3'. While tracking mutagen, the Turtles bring a mutated squirrel back to the lair. When it starts multiplying, the Turtles must hunt the squirrel mutants and prevent them escaping into the city.