Ancient intelligences take up residence in the bodies of Enterprise crewmen. It's supposed...
Kirk and McCoy find themselves stranded on a planet where the Klingons are giving...
It's the Planet of the Gangsters!
Kirk, Uhura, and Chekov find themselves forced into the role of gladiators!
Tribbles eat, reproduce, and cause all kinds of trouble.
Kirk defends Scotty when the Chief Engineer becomes a suspect in multiple murders!
Captain Kirk goes full Ahab on a gas creature.
Most of an away team find themselves rapidly aging at the worst possible moment.
Mining negotiations on a less technologically advanced planet take a bad turn when the...
The second most popular Vulcan in the series' history premiers. Sorry, Tuvok.