
The iconic series "Star Trek" follows the crew of the starship USS 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 Sulu and chief engineer Lt. Cmdr. Montgomery "Scotty" Scott -- confront strange alien races, friendly and hostile alike, as they explore unknown worlds.

A disease that caused the rapid aging and death of a planetary survey team threatens the Enterprise officers.

The rulers of the world Triskelion kidnap Kirk, Uhura and Chekov and force them to fight in wagered bouts.

The space probe Nomad, its programming altered in an encounter with an alien device, mistakes Kirk for its creator.

Kirk, Scott, McCoy and Uhura accidentally switch places with their malevolent counterparts from a parallel universe.