A transporter malfunction causes Captain Kirk to split into his "good" and "evil" selves, and a landing party will freeze to death if the crew is unable to find a way to merge the two Kirks back together.

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