Episodes
Spock's Brain
6.2An 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.
51 min
The Enterprise Incident
7.9The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
51 min
The Paradise Syndrome
6.6An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
51 min
And the Children Shall Lead
5.7On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.
51 min
Is There in Truth No Beauty?
7.1The Enterprise travels with an alien ambassador whose appearance induces madness.
51 min
Spectre of the Gun
6.8Having 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.
51 min
Day of the Dove
7.5An alien force drives the crew of the Enterprise into brutal conflict with the Klingons.
51 min
For the World Is Hollow and I Have Touched the Sky
7.2The crew of the Enterprise rush to stop an asteroid from colliding with a Federation world, but discover the asteroid is actually an inhabited generation ship.
51 min
The Tholian Web
7.5Captain Kirk is caught between dimensions while the crew of the Enterprise works to retrieve him. All the while, the Tholians demand that the Enterprise leave their space.
50 min
Plato's Stepchildren
6.8The 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.
51 min
Wink of an Eye
7.4Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
51 min
The Empath
6.5While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
51 min
Elaan of Troyius
6.8The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
51 min
Whom Gods Destroy
6.9Captain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.
51 min
Let That Be Your Last Battlefield
7.4The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
51 min
The Mark of Gideon
6.8A race of overpopulated aliens abduct Captain Kirk to solve their problem.
51 min
That Which Survives
6.6Kirk, 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.
51 min
The Lights of Zetar
6.5Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
51 min
Requiem for Methuselah
7.1The crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.
51 min
The Way to Eden
6.1The Enterprise picks up a group of space "hippies" looking for Eden.
51 min
The Cloud Minders
7.1Captain Kirk races against time to acquire plague-fighting minerals from a world in the midst of a civil uprising against a grievous social class disparity.
51 min
The Savage Curtain
6.7Aliens force Captain Kirk and First Officer Spock to join forces with "Abraham Lincoln" and "Surak" to battle villains in a contest of good vs. evil.
51 min
All Our Yesterdays
7.8Kirk, Spock and McCoy are trapped in two parts of another planet's past - a world threatened with destruction when its sun goes supernova.
51 min
Turnabout Intruder
7.0The Enterprise is in danger when Janice Lester, one of Kirk's former lovers, steals his body.
51 min