Karate Schooled: When the turtles are reunited with Casey and April, it's smiles all around ... until it becomes clear that Casey's being brainwashed by his new martial arts instructor, Master Khan, a devoted Foot operative.
Stars: Michael Sinterniklaas, Wayne Grayson, Sam Riegel
Director(s): Roy Burdine
Writer(s): Kevin Eastman, Peter Laird, Michael Ryan