Episode 1
Spock's Brain
1968-09-20 • 51 min
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.
TV season
1968-09-20
Episode 1
1968-09-20 • 51 min
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.
Episode 2
1968-09-27 • 51 min
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
Episode 3
1968-10-04 • 51 min
An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
Episode 4
1968-10-11 • 51 min
On 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.
Episode 5
1968-10-18 • 51 min
The Enterprise travels with an alien ambassador whose appearance induces madness.
Episode 6
1968-10-25 • 51 min
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.
Episode 7
1968-11-01 • 51 min
An alien force drives the crew of the Enterprise into brutal conflict with the Klingons.
Episode 8
1968-11-08 • 51 min
The 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.
Episode 9
1968-11-15 • 50 min
Captain 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.
Episode 10
1968-11-22 • 51 min
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.
Episode 11
1968-11-29 • 51 min
Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
Episode 12
1968-12-06 • 51 min
While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
Episode 13
1968-12-20 • 51 min
The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
Episode 14
1969-01-03 • 51 min
Captain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.
Episode 15
1969-01-10 • 51 min
The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
Episode 16
1969-01-17 • 51 min
A race of overpopulated aliens abduct Captain Kirk to solve their problem.
Episode 17
1969-01-24 • 51 min
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.
Episode 18
1969-01-31 • 51 min
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
Episode 19
1969-02-14 • 51 min
The crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.
Episode 20
1969-02-21 • 51 min
The Enterprise picks up a group of space "hippies" looking for Eden.
Episode 21
1969-02-28 • 51 min
Captain 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.
Episode 22
1969-03-07 • 51 min
Aliens 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.
Episode 23
1969-03-14 • 51 min
Kirk, Spock and McCoy are trapped in two parts of another planet's past - a world threatened with destruction when its sun goes supernova.
Episode 24
1969-06-03 • 51 min
The Enterprise is in danger when Janice Lester, one of Kirk's former lovers, steals his body.