Star Trek S1E9 poster

Watch Star Trek – Season 1 Episode 9: Dagger of the Mind

Star Trek • Season 1, Episode 9 • 50 min • 1966 • ⭐ 8.0/10 • Drama , Sci-Fi & Fantasy

Cast: William Shatner , Leonard Nimoy , DeForest Kelley , James Doohan , Walter Koenig , George Takei , Nichelle Nichols

Directors: Gene Roddenberry

Watch Star Trek – S1E9

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.

Episode Navigation

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