The Enemy Within S5E5 - The Enemy Within 1966
A transporter malfunction causes Captain Kirk to split into his "good" and "evil" selves, and a landing party will freeze to death if they don't merge the two back together.
- Released: 1966-10-06
- Runtime: 50 minutes
- Genre:
- Stars: William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan, George Takei, Nichelle Nichols
- Director: Leo Penn