Plot: When a wild eyed maniac escaping from the Tantalus Penal Colony turns out to be one of the psychiatric staff, Kirk investigates the institution and discovers a chilling exercise in mind control.

Star Trek - Season 1 - Dagger of the Mind (Episode 9)
Episode Aired On:
Thursday, November 3 1966
58 years ago
Thursday, November 3 1966
58 years ago