When Kirk, Spock, and McCoy investigate the disappearance of a doomed planet's population, they find themselves trapped in different periods of that world's past.

Starring:

William Shatner, Leonard Nimoy, DeForest Kelley, Majel Barrett, Walter Koenig, George Takei, Nichelle Nichols, James Doohan, Bill Blackburn, Frank da Vinci

Genre:

Adventure, Sci-Fi