Dr. McCoy discovers his old flame is not what she seems after crew members begin dying from a sudden lack of salt in their bodies.



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Episode complete credited cast:
Bruce Watson ...
Michael Zaslow ...
Vince Howard ...
Francine Pyne ...
Nancy III


In the series premiere, the Enterprise visits planet M-113 where scientists Dr. Crater and his wife Nancy, an old girlfriend of Dr. McCoy, are studying the remains of an ancient civilization. When Enterprise crewmen begin turning up dead under mysterious circumstances, Kirk and Spock must unravel the clues to discover how, why, and who is responsible. Written by JW Kearse

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Release Date:

8 September 1966 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


In early episodes like this one, there are up and down indicators that light up outside the turbolifts. Although they are seen in subsequent episodes, only in the earliest ones do they actually light up to indicate direction of travel. Elevator indicator lights later show up in engineering above one of the consoles. See more »


When Kirk jumps out from behind the rock after stunning Crater with his phaser, the large "stone masonry" structure next to him wobbles when he nudges it, revealing it's fake. However, the rock on planet M-113 may be volcanic rock or rock such as pumice which is lightweight and the stone masonry made of such, and thus, movable. See more »


[first lines]
Captain James T. Kirk: Captain's log, stardate 1513.1. Our position, orbiting planet M-113. On board the Enterprise, Mr. Spock, temporarily in command. On the planet, the ruins of an ancient and long-dead civilization. Ship's surgeon McCoy and myself are now beaming down to the planet's surface. Our mission: routine medical examination of archeologist Robert Crater and his wife Nancy. Routine but for the fact that Nancy Crater is that one woman in Dr. McCoy's past.
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Spoofed in Turist Ömer Uzay Yolu'nda (1973) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

Not your typical monster episode.
29 December 2012 | by (The San Francisco Bay Area) – See all my reviews

On the surface of it this is a typical Vamp episode with a sci-fi twist. One might recall "King Lear" and the machinations of the King's daughters. That might partially explain the motivation of the antagonist, but there's more here. There's a basic functionality at work; predator and prey relationships, only this time they're encoded with a kind of intellectual gloss where the subject in question can camouflage themselves amongst the prey.

And that's another theme that's explored here. A man denied of companionship, starved for it, whose occupation doesn't lend himself to mixing with throngs of female suitors, finds that his companion is a subject of interest. What will he do when presented its talents, even though there's a deadly price to be paid? How bendable is a man when it comes to his more basic yearnings.

Another theme explores possible motivations of the creature, though even those are given a healthy amount of light, and we see the creature for all of its worth, when all is said and done.

The distant world of M-113 has ruins of a civilization that once way, but is no more. Dr. Crater is essentially marooned for the sake of his work, and whether it's the heat, his work, or lack of a moral compass, we're given some insight to, but it does not explain the entirety of his decision, and Captain James T. Kirk exposes the truth.

Do you destroy the living vestige of a lost empire? Do you kill off something that is an artifact of days long gone, but could destroy you? What would your decision be?

Again, on the surface it is a silly superficial monster episode. But if you listen to the dialogue carefully, there are some ideas there that should give you pause to think.


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