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Operation: Annihilate!

"Operation: Annihilate!"
Star Trek: The Original Series episode
Episode no. Season 1
Episode 29
Directed by Herschel Daugherty
Written by Steven W. Carabatsos
Featured music Alexander Courage
Cinematography by Jerry Finnerman
Production code 029
Original air date April 13, 1967 (1967-04-13)
Guest appearance(s)
Episode chronology
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"The City on the Edge of Forever"
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"Operation: Annihilate!" is the last original episode from the first season of the original American science fiction television series Star Trek. It is episode #29, production #29, and was broadcast April 13, 1967. It is written by Stephen W. Carabatsos, and directed by Herschel Daugherty.

In the episode, the crew of the USS Enterprise must find a way to exterminate malevolent parasitic creatures that have taken over the bodies of residents of a Federation colony.

The Federation starship the USS Enterprise is tracking a path of mass insanity that has gripped several planets in its wake, causing collapse of their civilizations. They approach Deneva, a Federation outpost where Captain Kirk's (William Shatner) brother, Sam, has been stationed along with Sam's wife Aurelan and son Peter. On entering the system, they witness a ship directly dive into the local sun, its pilot raving incoherently about being "free" up until its destruction, and the Enterprise crew fear they may be too late.

Transporting to Deneva, Kirk, First Officer Spock (Leonard Nimoy), Chief Medical Officer Dr. McCoy (DeForest Kelley) and a security detail find the outpost quiet. A group of men from the outpost come out and try to warn the landing party away and suddenly fall into a fit of violence. Kirk has the men stunned, and McCoy finds that they are still being stimulated to behave violently despite being unconscious. They explore the outpost and locate the Kirk family home; Sam (William Shatner in a dual role) lies dead on the floor, while Aurelan (Joan Swift) acts irrationally before passing out and Peter (Craig Hundley) is comatose. Kirk and McCoy return with the survivors to Enterprise, where McCoy finds they are suffering from violent tendencies similarly to the outpost men. McCoy gives both painkillers, and Aurelan wakes briefly to warn Kirk that some agency had forced them to bring them to the planet months ago and this agency is looking to spread beyond the planet through the ability to control people's bodies. Aurelan dies from the pain.


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