Dagger of the Mind
Run Time: 50 mins
Air Date: Thu, 3 Nov 1966
Average Rating: ⭐ 6.887 (53 votes)
NBCSeason 1 - Episode 9
Average Rating: ⭐ 6.887 (53)
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.