The Alternative Factor 1 Season 27 Episode

Episode #1

The Man Trap

Episode #2

Charlie X

Episode #3

Where No Man Has Gone Before

Episode #4

The Naked Time

Episode #5

The Enemy Within

Episode #6

Mudd's Women

Episode #7

What Are Little Girls Made Of?

Episode #8

Miri

Episode #9

Dagger of the Mind

Episode #10

The Corbomite Maneuver

Episode #11

The Menagerie (1)

Episode #12

The Menagerie (2)

Episode #13

The Conscience of the King

Episode #14

Balance of Terror

Episode #15

Shore Leave

Episode #16

The Galileo Seven

Episode #17

The Squire of Gothos

Episode #18

Arena

Episode #19

Tomorrow Is Yesterday

Episode #20

Court Martial

Episode #21

The Return of the Archons

Episode #22

Space Seed

Episode #23

A Taste of Armageddon

Episode #24

This Side of Paradise

Episode #25

The Devil in the Dark

Episode #26

Errand of Mercy

Episode #27

The Alternative Factor

Episode #28

The City on the Edge of Forever

Episode #29

Operation: Annihilate!