The Pirates of Orion
Sep 07, 1974
The medicine required for Spock who has contracted a fatal disease is stolen by Orionian pirates.
Sep 14, 1974
The Enterprise crew is being observed as their suitability to meet with advanced civilizations.
The Practical Joker
Sep 21, 1974
The computer of the Enterprise gains partial sentience and starts playing practical jokes on the crew.
How Sharper Than a Serpent's Tooth
Oct 05, 1974
The Enterprise runs into a being that once visited Earth and influenced the Mayan culture.