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Watch Star Trek - Season 1 Episode 29 Online!:

Kirk and the Enterprise must combat parasitic aliens threatening the lives of millions.

Writing:
  • Gene Roddenberry

Stars:
Release Date: 1966-09-08
Seasons: 1 2 3
Metacritic: 8.2/10
TMDb: 8.0/10
  • Country: US
  • Language: English
  • Runtime: 50

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