Star Trek (1966–1969)
26 user 6 critic
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.


Joseph Pevney


Gene L. Coon (teleplay by), Fredric Brown (story by) | 1 more credit »

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Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
DeForest Kelley ... Dr. McCoy
George Takei ... Sulu
James Doohan ... Scott
Nichelle Nichols ... Uhura
Jerry Ayres Jerry Ayres ... O'Herlihy
Grant Woods ... Kelowitz
Tom Troupe Tom Troupe ... Lt. Harold
James Farley James Farley ... Lang
Carolyne Barry Carolyne Barry ... Metron (as Carole Shelyne)
Sean Kenney ... DePaul


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


TV-PG | See all certifications »


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Release Date:

19 January 1967 (USA) See more »

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Technical Specs


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Did You Know?


This was the only live-action appearance of the Gorn in the "Star Trek" franchise until Star Trek: Enterprise: In a Mirror, Darkly, Part II (2005) 38 years later. In the interim, they appeared in Star Trek: The Animated Series: The Time Trap (1973). See more »


When Kirk is sitting on a rock and talking to himself about his situation he calmly identifies the "sulfur" lying beside him. The terrain, although "alien" would still logically have certain vegetation/wildlife/minerals consistent with evolution. The bright yellow, clean "sulfur" powder clearly is not indigenous to the area and is neatly poured onto the rock by the prop department ONLY in that scene and not in the rest of the story. Bamboo does not grow out from rock formations, random chunks of coal are found in a neat little pile in one spot. 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 »

Alternate Versions

Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song. Highlights include a wider angle on the Cestus outpost showing more destruction (and removing an oddly-placed chunk of metal in the foreground) and the never-before-seen Gorn ship. See more »


Referenced in Spooksville: Fathers and Sons (2014) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

Kirk And His Adversary
21 September 2010 | by souther02See all my reviews

Let's face it, the most far-fetched scene of the show is how Kirk constructs the rocket from the different materials in "The Arena". The Enterprise finds a planet where a terrible battle is going on between members of the Federation and a group who have claimed the planet for their own. Supposedly, the defenders of the station have attacked the Federation outpost because they themselves felt they were invaded. Kirk soon finds out that system of planets belongs to a mysterious race of beings who are indignant at the encroachment of their system by the Star Fleet. But that is not the only reason. Because of the battle raging on the planet, the Metrones decide to single out Captain Kirk to do battle with a massive warrior known as a Gorn. While this battle between only the two goes on, the Enterprise has had a lot of it's functionality disabled. By the Metrones it seems, a race of beings that are far superior to the humans(and Spock) in many ways. The first season of Star Trek has always been my favorite of all the Star Trek, and I must be indicted for my age. Yes, the shows are not high on the cinematic level in terms of effects. But there is a lot of morality and ethics in those first shows that is a major part of the episodes. The first season appears to be the best, and that is because of the screenplay of the episodes. It is very well-written, being the first season of an incredible new ongoing adventure in science fiction.

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