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Episode guide

S1·E27 The Alternative Factor

Core Aired March 30, 1967 51 min ★ 5.6/10 · 48 TMDB votes

Synopsis

Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.

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Frequently Asked Questions

When did Season 1 Episode 27 of Star Trek air?

Season 1, Episode 27 ('The Alternative Factor') originally aired on March 30, 1967.

How long is Season 1 Episode 27 ('The Alternative Factor')?

The runtime for this episode is approximately 51 minutes.

What happens in Star Trek Season 1 Episode 27?

Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe....