Spock's Brain
Season 3, Episode 1 TV-PG
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Kirk pursues aliens who have taken Spock's brain.
The Enterprise Incident
Season 3, Episode 2 TV-PG
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Disguised as a Romulan, Kirk steals a cloaking device.
The Paradise Syndrome
Season 3, Episode 3 TV-PG
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Kirk loses his memory and begins a life in a native village.
And the Children Shall Lead
Season 3, Episode 4 TV-PG
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A group of children are being controlled by an evil force.
Is There in Truth No Beauty?
Season 3, Episode 5 TV-PG
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The sight of a Medusan ambassador causes insanity.
Spectre of the Gun
Season 3, Episode 6 TV-PG
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As punishment for trespassing, Kirk and crew are forced to re-enact the shootout at the OK Corral.
Day of the Dove
Season 3, Episode 7 TV-PG
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A malevolent entity pits Klingons against the Enterprise crew.
For the World Is Hollow and I Have Touched the Sky
Season 3, Episode 8 TV-PG
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For the World Is Hollow and I Have Touched the Sky
The Tholian Web
Season 3, Episode 9 TV-PG
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Kirk is trapped in interphase, while the Enterprise is trapped by a powerful energy web.
Plato's Stepchildren
Season 3, Episode 10 TV-PG
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Platonians use psychokinetic power to toy with the crew.
Wink of an Eye
Season 3, Episode 11 TV-PG
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Hyperaccelerated aliens, invisible to the naked eye, take over the Enterprise.
The Empath
Season 3, Episode 12 TV-PG
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The landing party is used to test an empathic race.
Elaan of Troyius
Season 3, Episode 13 TV-PG
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Kirk is distracted while the Enterprise is threatened.
Whom Gods Destroy
Season 3, Episode 14 TV-PG
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Kirk is confronted by one of his heroes, now criminally insane.
Let That Be Your Last Battlefield
Season 3, Episode 15 TV-PG
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Two survivors of a devastated planet remain committed to destroying one another.
The Mark of Gideon
Season 3, Episode 16 TV-PG
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Kirk is abducted by aliens who wish to use him to help solve their overpopulation problem.
That Which Survives
Season 3, Episode 17 TV-PG
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A deadly computer image protects a long dead outpost.
The Lights of Zetar
Season 3, Episode 18 TV-PG
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Zetarians threaten Lieutenant Mira Romaine.
Requiem for Methuselah
Season 3, Episode 19 TV-PG
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Kirk and crew meet an immortal human named Flint.
The Way to Eden
Season 3, Episode 20 TV-PG
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A charismatic leader and his followers hijack the Enterprise in their search for "Eden."
The Cloud Minders
Season 3, Episode 21 TV-PG
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Kirk is forced into negotiating peace on a planet with severe class inequities.
The Savage Curtain
Season 3, Episode 22 TV-PG
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Kirk and Spock are forced into a battle of good and evil.
All Our Yesterdays
Season 3, Episode 23 TV-PG
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Kirk, Spock and McCoy enter a time portal and get stuck in the past on a planet about to be consumed by a nova.
The Turnabout Intruder
Season 3, Episode 24 TV-PG
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A woman from Kirk's past exchanges bodies with him and takes control of the ship.