Teenage Mutant Ninja Turtles (2003)

Notes from the Underground (3) (1x15)

Air date: May 24, 2003

When the Turtles and their new allies start vanishing one by one, only Michelangelo is left. He finally finds the perpetrator in the underground city - it's sole survivor. Though his intentions appears noble at first, by restoring the creatures to their normal human selves, there is a catch...