Teenage Mutant Ninja Turtles (2003)

Season 7: Back to the Sewer

Episode 7: Identity Crisis

Cyber-Shredder unleashes a virus that wipes the Turtles' memories, reprogramming them so that they work for the Foot. The four Turtles do the bidding of Master Khan while April, Casey, and Serling attempt to restore the memories of the four heroes. Do they succeed?