Star Trek: The Original Series, Vol. 2 [DVD] [1969] [Region 1] [US Import] [NTSC] - Region 1 DVD

Also in this volume is another outstanding episode, "The Enemy Within." Written by renowned novelist-screenwriter Richard Matheson (The Incredible Shrinking Man), the story proposes a transporter malfunction that results in Captain Kirk being divided into two versions of himself, one aggressive and brutal, the other sensitive and good. Essentially, the personality mix that makes Kirk an effective leader and balanced man is scattered like so many marbles, and the result is one captain running around mauling women and wreaking havoc while the other is frightened and indecisive. The production is very effectively done, and Shatner's performance is among his most interesting. --Tom Keogh

"Mudd's Women" (Ep.4): Conman Harry Mudd brokers the marriage of three beautiful women to a mining colony to escape Kirk. "The Enemy Within" (Ep.5): A transporter malfunction splits Kirk into good and evil entities.