The Enterprise discovers a planet exactly like Earth, but the only inhabitants are children who contract a fatal disease upon entering puberty.



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Episode complete credited cast:
Keith Taylor ...
Jahn's Friend
Ed McCready ...
Boy Creature
Kellie Flanagan ...
Blonde Girl
Stephen McEveety ...
Redheaded Boy (as Steven McEveety)
Security Guard #1 (as David Ross)
Jim Goodwin ...
John Megna ...
Little Boy


The Enterprise receives an old style SOS signal and finds on arrival a planet that is virtually identical to Earth. Kirk, Spock, McCoy and Yeoman Rand beam down to the planet only to find that it is inhabited solely by children. Kirk befriends one of the older children, Miri, but they soon learn that experiments to prolong life killed all of the adults and that the children will also die when they reach puberty. They also learn that the children are in fact, very old. Soon, the landing party contracts the virus and has seven days to find a cure. Written by garykmcd

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Release Date:

27 October 1966 (USA)  »

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Aspect Ratio:

1.33 : 1
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Despite being transmitted by the BBC in the UK in December 1970, "Miri" was not broadcast again until the '90s. An official BBC statement by Sheila Cundy of the Programme Correspondence Section reads: "After very careful consideration a top level decision was made not to screen the episodes entitled Star Trek: The Empath (1968), Star Trek: Whom Gods Destroy (1969), Star Trek: Plato's Stepchildren (1968) and "Miri", because they all dealt most unpleasantly with the already unpleasant subjects of madness, torture, sadism and disease" (BBC form letter, undated, Reference 28/SPC). Apparently, when "Miri" was first broadcast by the BBC (in black and white), several viewers wrote to complain about its content and the BBC reviewed the remainder of the episodes, deeming the three mentioned above as being unsuitable. When the BBC came to restart its showing of the first season (having acquired colour film prints), "Miri" and the others were omitted; in 1984 when the BBC decided to show Star Trek (1966) in prime-time, these episodes were still omitted, despite the continuity announcer telling the audience that they would be "beaming up the whole series." Clips from "Miri" were shown circa 1984 on the I Love TV quiz show, broadcast on a rival station (ITV), possibly because the BBC did not have exclusivity on this episode; a clip was shown of the "glandular changes" scene on a brief late night documentary feature on Star Trek: The Next Generation in late 1987. A little time after this, the UK satellite channel Sky had acquired rights to show all the episodes, and included all the banned ones. Finally, when the BBC was forced to acquire videotape copies of the original series circa 1991 (the film prints being in too poor a condition to broadcast again), they included the banned episodes in their repertoire. See more »


What did the two security guards that came with the landing party do? They aren't present when the away team is attacked or in any other scene, did they go AWOL? We see them again at the end and they aren't sick with the purple sores, either, when they return. In addition, they would have communicators with them; John only gets four communicators when he raids the lab, so the landing party would be able to communicate with the ship using the guards' communicators. Update: When Jahn steals the communicators, he is seen to steal 5 of them - he puts the first 2 in his pockets, then picks up 3 more before leaving. See more »


Dr. McCoy: Now this is marvelous. The most horrible conglomeration of antique architecture I've ever seen.
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Referenced in South Park: The Wacky Molestation Adventure (2000) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

Just Who Made Their Clothes?
25 April 2014 | by (United States) – See all my reviews

Kirk and the gang encounter a group of children, living on a planet where the adults seem to have disappeared a long time ago. Upon arrival, they find a man dying in agony and don't understand the how he arrived at his condition. Investigating further, they come upon what appear to be children who act like six year olds, even though they are actually 300 years old. Dr. McCoy comes to the conclusion that there is something about the planet that causes a horrible demise when puberty is reached. Kirk tries to negotiate with the kids because they think the adults are responsible. Kirk meets Miri (Kim Darby) who develops a crush on him. Unfortunately for her, she is beginning to show symptoms similar to the dying man. She has another ally, a young man played by the very strange Michael J. Pollard who was the driver in the "Bonnie and Clyde." The kids just won't trust the crew and this presents a problem for Kirk, who begins to turn on the charm. The kids are really freaky and play violent games and won't listen to reason. Why after 300 years they have not evolved any further than they have is a real mystery. Will the condition that is affecting Miri be circumvented? That is the question.

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