|Original Airdate||October 15, 2011|
Dr. Eternum, the demented psychiatrist who runs Eternum Asylum believes he has the power to change human nature and turn good into evil. Eternum lures the ninjas to the asylum in order to test his opposing theory. Also: while in the asylum Amanda finds Checkmate and by the end of the episode, Checkmate breaks out.
- Amanda comes face to face with Checkmate a villain the ninjas defeated in episode 4 of season 1.