For bringing hostility into their solar system, a superior alien race brings Captain Kirk in mortal combat against the reptilian captain of an alien ship he was pursuing.



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Episode complete credited cast:
Jerry Ayres ...
Lieutenant Kelowitz
Tom Troupe ...
James Farley ...
Lt. Commander Lang
Carolyne Barry ...
Metron (as Carole Shelyne)
Sean Kenney ...


When a reptilian alien race known as the Gorn destroys an Earth colony, the Enterprise comes under attack by the Gorn vessel. Captain Kirk soon gives chase to the Gorn ship, leading them to an unexplored solar system, gradually (and dangerously) increasing speed. Kirk prepares to destroy the Gorn ship until another race of powerful aliens called the Metrons stops them and forces both captains to face off in mortal combat. The main purpose of this one-on-one duel is to solve their dispute, the winner will be released and the loser will be destroyed along with his ship and crew. Written by Anonymous

Plot Summary | Plot Synopsis


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Release Date:

19 January 1967 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


"Metron" is similar to Metatron, an angel in Judaism. The name means "instrument of change" in Greek. The name of the planet, Cestus III, refers to gladiatorial combat. A cestus is a type of boxing glove, consisting of strips of iron wrapped in leather, which gladiators wore in the arena. See more »


The large boulder that Kirk pushes off the edge of a cliff to try and crush the Gorn is very large and requires Kirk to push it slightly uphill to get it to topple off the edge. A boulder this large would easily weigh over 1000 lbs, and there is no way Kirk could have managed to push it uphill to get it over the edge by himself. See more »


[first lines]
Captain James T. Kirk: You'll enjoy Commodore Travers. He sets a good table.
Dr. McCoy: I wonder if he brought his personal chef along with him to Cestus III.
Captain James T. Kirk: Probably. Rank hath its privileges.
Dr. McCoy: [they both chuckle] How well we both know that!
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Crazy Credits

The closing credits are set against a combination background of stills from that episode and previous episodes. See more »


Referenced in The Big Bang Theory: The Transporter Malfunction (2012) See more »

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User Reviews

Gorn Fishing!
26 April 2014 | by (United States) – See all my reviews

A convention used frequently is that of setting two opponents against each other, giving them no choice but to fight. The frequent accusations by the more advanced aliens that earth creatures are too violent is often counteracted by their own blood lust. In this episode, Kirk is pitted against the Gorn, a species of lizard man. Perhaps they could have done just a bit of work to animate his jaw, rather than making it look like a Halloween mask. This episode forces Kirk to draw on his knowledge of chemistry and warfare to face the Gorn. As the crew watches the fight continues. They parry and thrust their way. The strength of the episode has to do with lessons learned. McCoy gets in his usual shot at Spock for inaction. He seems to blame him whenever his logic doesn't solve the problem.

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