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Star Trek
Season 3 • Episode 18 • The Lights of Zetar
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Star Trek Season 3, Episode 18: The Lights of Zetar
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise. Watch Star Trek Season 3, Episode 18 The Lights of Zetar in HD free online. Enjoy high-quality streaming of Star Trek Season 3, Episode 18 and share your thoughts in the comments below!
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Episodes
24 episodes
Spock's Brain
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.
51 min
The Enterprise Incident
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
51 min
The Paradise Syndrome
An 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
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.
51 min
Is There in Truth No Beauty?
The Enterprise travels with an alien ambassador whose appearance induces madness.
51 min
Spectre of the Gun
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.
51 min
Day of the Dove
An 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
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.
51 min
The Tholian Web
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.
50 min
Plato's Stepchildren
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.
51 min
Wink of an Eye
Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
51 min
The Empath
While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
51 min
Elaan of Troyius
The 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
Captain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.
51 min
Let That Be Your Last Battlefield
The 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
A race of overpopulated aliens abduct Captain Kirk to solve their problem.
51 min
That Which Survives
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.
51 min
The Lights of Zetar
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
51 min
Requiem for Methuselah
The crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.
51 min
The Way to Eden
The Enterprise picks up a group of space "hippies" looking for Eden.
51 min
The Cloud Minders
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.
51 min
The Savage Curtain
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.
51 min
All Our Yesterdays
Kirk, 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
The Enterprise is in danger when Janice Lester, one of Kirk's former lovers, steals his body.
51 min