Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.

Filmens bedømmelse: 5.7 / 10 (3405)

Instrueret af: Gerd Oswald - Don Ingalls - Gene Roddenberry

Forfatter: Don Ingalls - Gene Roddenberry

Medvirkende: William Shatner - Leonard Nimoy - Robert Brown - DeForest Kelley - Janet MacLachlan

Også Kendt Som: Star Trek: The Original Series, Star Trek, Star Trek: TOS, Star Trek S2 Remastered, Argentina, Mexico, Brazil, Spain, Star Trek: TOS (USA (promotional abbreviation))

Upload undertekster