Genre: Science Fiction, Fantasy, Adventure
Premise: The iconic series ``Star Trek'' follows the crew of the starship U.S.S. Enterprise as it completes its missions in space in the 23rd century. Captain James T. Kirk -- along with half- human/half-Vulcan science officer Spock, ship Dr. ``Bones'' McCoy, Ensign Pavel Chekov, communications officer Lt. Nyota Uhura, helmsman Lt. Hikaru Zulu and chief engineer Lt. Cmdr. ``Scotty'' Scott -- confront strange alien races, friendly and hostile alike, as they explore unknown worlds.
S02, E04 (First Aired: Oct. 6, 1967)
Kirk, Scott, McCoy and Uhura accidentally switch places with their malevolent counterparts from a parallel universe.
S02, E05 (First Aired: Oct. 13, 1967)
The Enterprise officers investigate a primitive society that seems to exist to serve a godlike machine; guest David Soul.