Star Trek · SEASON 1

Dagger of the Mind

Episode 9 · 1966-11-03

★ 6.9
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Season 1Episode 9★ 6.9/10
  • Sci-Fi & Fantasy
  • Drama

Episode overview

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.

50 minutes

Season 1 episodes