Playback serverIf a title won’t play, switch servers.
Star Trek
Season 1 · Episode 27
The Alternative Factor
5.751mMarch 30, 1967
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.
Episodes
- Episode 1The Man Trap
- Episode 2Charlie X
- Episode 3Where No Man Has Gone Before
- Episode 4The Naked Time
- Episode 5The Enemy Within
- Episode 6Mudd's Women
- Episode 7What Are Little Girls Made Of?
- Episode 8Miri
- Episode 9Dagger of the Mind
- Episode 10The Corbomite Maneuver
- Episode 11The Menagerie (1)
- Episode 12The Menagerie (2)
- Episode 13The Conscience of the King
- Episode 14Balance of Terror
- Episode 15Shore Leave
- Episode 16The Galileo Seven
- Episode 17The Squire of Gothos
- Episode 18Arena
- Episode 19Tomorrow Is Yesterday
- Episode 20Court Martial
- Episode 21The Return of the Archons
- Episode 22Space Seed
- Episode 23A Taste of Armageddon
- Episode 24This Side of Paradise
- Episode 25The Devil in the Dark
- Episode 26Errand of Mercy
- Episode 27The Alternative Factor
- Episode 28The City on the Edge of Forever
- Episode 29Operation: Annihilate!