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Star Trek: The Original Series Season One DVD set
[USA] [Canada] [France] [UK] [Germany]
Production Number: 02
Original Air Date: 09-22-66
Stardates: 1312.4, 1312.9, 1313.1, 1313.3, 1313.8

Synopsis: While approaching the edge of the Galaxy, The U.S.S. Enterprise detects a recorded distress signal from the S.S. Valiant, an Earth vessel missing for two centuries. The Enterprise finds a damaged ship recorder from the Valiant, with the last messages indicating something about extrasensory perception in humans, and the captain ordering the ship's destruction.

When the Enterprise reaches the edge of the Galaxy, it encounters an energy barrier that damages the ship's warp engines, and Lt. Commander Gary Mitchell begins to display increasing mental powers.

With no warp power, the Enterprise travels to a nearby lithium cracking station on Delta Vega, where Kirk intends to strand Mitchell before his mental abilities begin to endanger the crew. The ship's new psychiatrist, Dr. Elizabeth Dehner, whose own mental abilities were enhanced by the energy barrier, helps to neutralize Mitchell's powers, and Kirk is forced to kill him before Mitchell becomes unstoppable.

  • Factoid: One of Spock's ancestors married a human female.

  • Factoid: Rodents on Dimorus throw poison darts; Gary Mitchell once took a dart meant for Kirk and almost died.

  • Factoid: Gary Mitchell creates a tombstone that reads: "JAMES R. KIRK: 1277.1 TO 1313.7"

  • Guest Characters: *Montgomery Scott, *Lt. Lee Kelso dies, *Lt. Commander Gary Mitchell dies, *Dr. Mark Piper, *Dr. Elizabeth Dehner dies, *Lt. Alden, Lt. Leslie
    Alien Races:
    Starships: *S.S. Valiant destroyed

    KEY: [brackets]=illusions   *star=first appearance

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