Star Trek (1966–1969)
26 user 5 critic

Spock's Brain 

The crew of the Enterprise pursues a mysterious woman who has abducted Spock's brain.



(created by), (as Lee Cronin)

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Episode complete credited cast:
James Daris ...
Sheila Leighton ...


The Enterpise is approached by an ion-propelled craft (much to Eng. Scott's liking); from it enters a female who renders everyone unconscious. When the crew wakes up, McCoy finds Spock alive in sick bay but with his brain surgically removed. McCoy urges its quick restoration if he's to survive at all. Desperately Kirk follows an ion-trail to a system where he gambles on an icy planet populated by a simple-minded all-male race of large cavemen who attack them. The landing party captures one, who says Kirk and crew are small like 'The Others' - bringers of pain and delight - whom they fear. McCoy brings down Spock's body, mobilized with a mechanical brain-substitute installed. They enter the acclimatized, underground dwelling of 'The Others' - a similarly simple-minded all-female race of enslavers - and overpower female Luma by surprise. Kirk makes communicator contact with Spock, who knows not where he is but is aware of autonomic functions. As they finally find Kara, the female ... Written by KGF Vissers

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TV-PG | See all certifications »

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Release Date:

20 September 1968 (USA)  »

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


This is the first episode in broadcast order in which the credits are displayed in blue font as opposed to the yellow font of the first two seasons. See more »


The Morgs are supposedly a primitive, almost caveman-like species, yet the seams on their clothing are perfectly stitched. How are they able to stitch such perfect clothing if they haven't even progressed past the stone age and haven't learned to use iron? See more »


Dr. McCoy: [after acquiring knowledge from the Teacher] Of course. Of course. A child could do it. A child could do it.
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User Reviews

brainless but fun
7 August 2006 | by (United States) – See all my reviews

This is one of my favorite episodes simply because it's one of the goofiest. Spock's brain is stolen, and the crew go in search of the brain. What makes the episode so amusing is McCoy using a remote control to drive Spock's body -- sit, stand, go forward, turn.

No, this episode did not push the boundaries of science fiction. It did not feature amazing acting talents, riveting dialogue, nor astonishing plot twists. But it was damn funny, and not because it was trying to be.

And the "teaching" helmet is a gas too. Kudos to the props department.

Don't skip this one!

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