Star Trek (1966–1969)
25 user 7 critic

The Man Trap 

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.


Marc Daniels


George Clayton Johnson, Gene Roddenberry (created by)

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Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
Jeanne Bal ... Nancy Crater
Alfred Ryder ... Prof. Robert Crater
DeForest Kelley ... Dr. McCoy
Grace Lee Whitney ... Yeoman Janice Rand
George Takei ... Sulu
Nichelle Nichols ... Uhura
Bruce Watson ... Green
Michael Zaslow ... Darnell
Vince Howard Vince Howard ... Crewman
Francine Pyne 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

Plot Summary | Plot Synopsis


TV-PG | See all certifications »

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English | Swahili

Release Date:

8 September 1966 (USA) See more »

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Did You Know?


For the first time on camera, Uhura wears a red uniform, instead of a gold one, from the earlier filmed episodes, Star Trek: The Corbomite Maneuver (1966) and Star Trek: Mudd's Women (1966). 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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Referenced in Starship Exeter: The Tressaurian Intersection (2005) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

Quite a Salty Episode
23 April 2014 | by HitchcocSee all my reviews

This is really quite good. The crew goes to a planet where Dr. Crater and his wife are due for a required checkup. They have been on the planet for five years. Mrs. Crater is a former love interest of Dr. McCoy and he looks forward with trepidation to seeing her. When the away team gets there each of them sees this woman in different. To McCoy, she appears to be as young as when they last met; Kirk sees her as one of an appropriate age; and the other crewman sees her as a woman from a pleasure colony. Now the bodies start to pile up. The men meet Dr. Crater who is uncooperative and unfriendly. A scream is heard outside and upon investigation, the body of the third crewman lies dead, circular burn-like marks on his skin. The central issue has something to do with salt. The body, when investigated, is lacking salt. Mrs. Crater is really worried that their salt supply is dissipated. Soon even more bodies are found. The thing is a shape-changer and it begins to find ways of attacking crew members to remove its salt.

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