The Enterprise picks up a group of space “hippies” looking for Eden.

Kirk, McCoy, and Sulu are stranded on a barren planet where a mysterious woman attempts to kill them one at a time, while the Enterprise must travel halfway across the galaxy to rescue them.

The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.

The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.

While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.

Invisible “time-accelerated” aliens take over the Enterprise and attempt to abduct the crew for use as “genetic stock”.

The crew of the Enterprise encounters an ageless and sadistic race of humanoids with the power of telekinesis and who claim to have organized their society around Ancient Greek ideals.

Having been found trespassers into Melkotian space, Captain Kirk and his companions are sent to die in a re-enactment of the gunfight at the O.K. Corral.

The Enterprise travels with an alien ambassador whose appearance induces madness.

An alien female beams aboard the ship and, after incapacitating the rest of the crew, surgically removes Spock’s brain. Kirk and the crew have just hours to locate and replace it before Spock’s body dies.