Season 3Public facts
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Episodes
Spock's BrainSpock's BrainOpen episodeAn 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.
The Enterprise IncidentThe Enterprise IncidentOpen episodeThe crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
The Paradise SyndromeThe Paradise SyndromeOpen episodeAn alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
And the Children Shall LeadAnd the Children Shall LeadOpen episodeOn 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.
Is There in Truth No Beauty?Is There in Truth No Beauty?Open episodeThe Enterprise travels with an alien ambassador whose appearance induces madness.
Spectre of the GunSpectre of the GunOpen episodeHaving 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.
Day of the DoveDay of the DoveOpen episodeAn alien force drives the crew of the Enterprise into brutal conflict with the Klingons.
For the World Is Hollow and I Have Touched the SkyFor the World Is Hollow and I Have Touched the SkyOpen episodeThe 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.
The Tholian WebThe Tholian WebOpen episodeCaptain 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.
Plato's StepchildrenPlato's StepchildrenOpen episodeThe 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.
Wink of an EyeWink of an EyeOpen episodeInvisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
The EmpathThe EmpathOpen episodeWhile visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
Elaan of TroyiusElaan of TroyiusOpen episodeThe USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
Whom Gods DestroyWhom Gods DestroyOpen episodeCaptain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.
Let That Be Your Last BattlefieldLet That Be Your Last BattlefieldOpen episodeThe Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
The Mark of GideonThe Mark of GideonOpen episodeA race of overpopulated aliens abduct Captain Kirk to solve their problem.
That Which SurvivesThat Which SurvivesOpen episodeKirk, 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 Lights of ZetarThe Lights of ZetarOpen episodeStrange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
Requiem for MethuselahRequiem for MethuselahOpen episodeThe crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.
The Way to EdenThe Way to EdenOpen episodeThe Enterprise picks up a group of space "hippies" looking for Eden.
The Cloud MindersThe Cloud MindersOpen episodeCaptain 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.
The Savage CurtainThe Savage CurtainOpen episodeAliens 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.
All Our YesterdaysAll Our YesterdaysOpen episodeKirk, Spock and McCoy are trapped in two parts of another planet's past - a world threatened with destruction when its sun goes supernova.
Turnabout IntruderTurnabout IntruderOpen episodeThe Enterprise is in danger when Janice Lester, one of Kirk's former lovers, steals his body.