Star Trek: The Original Series

Kirk pursues aliens who have taken Spock's brain.

Disguised as a Romulan, Kirk steals a cloaking device.

Kirk loses his memory and begins a life in a native village.

The Enterprise takes a journey to a planet where a team of scientists has been killed. The surviving children on the planet behave in a peculiar manner.

The sight of a Medusan ambassador causes insanity.

As punishment for trespassing, Kirk and crew are forced to re-enact the shootout at the OK Corral.

A malevolent entity pits Klingons against the Enterprise crew.

An inhabited asteroid is on a collision course with a Federation planet.

Kirk is trapped in interphase, while the Enterprise is trapped by a powerful energy web.

Platonians use psychokinetic power to toy with the crew.

Hyperaccelerated aliens, invisible to the naked eye, take over the Enterprise.

The landing party is used to test an empathic race.

Kirk is distracted while the Enterprise is threatened.

Kirk is confronted by one of his heroes, now criminally insane.

Two survivors of a devasted planet remain committed to destroying one another.

Kirk is abducted by aliens who wish to use him to help solve their overpopulation problem.

A deadly computer image protects a long dead outpost.

Zetarians threaten Lieutenant Mira Romaine.

Kirk and crew meet an immortal human named Flint.

A charismatic leader and his followers hijack the Enterprise in their search for "Eden."

Kirk is forced into negotiating peace on a planet with severe class inequities.

Kirk and Spock are forced into a battle of good and evil.

Kirk, Spock and McCoy enter a time portal and get stuck in the past on a planet about to be consumed by a nova.

A woman from Kirk's past exchanges bodies with him and takes control of the ship.