Star Trek
S01E27 The Alternative Factor
Kirk and Spock meet an alien called Lazarus, who asserts that he hails from a universe made entirely of anti-matter.
Season 1 Episodes
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The Man Trap
Charlie X
Where No Man Has Gone Before
The Naked Time
The Enemy Within
Mudd's Women
What Are Little Girls Made Of?
Miri
Dagger of the Mind
The Corbomite Maneuver
The Menagerie (1)
The Menagerie (2)
The Conscience of the King
Balance of Terror
Shore Leave
The Galileo Seven
The Squire of Gothos
Arena
Tomorrow Is Yesterday
Court Martial
The Return of the Archons
Space Seed
A Taste of Armageddon
This Side of Paradise
The Devil in the Dark
Errand of Mercy
The Alternative Factor
The City on the Edge of Forever
Operation: Annihilate!