Star Trek (1966–1969)
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Errand of Mercy 

With a war with Klingons raging, Kirk and Spock attempt to resist an occupation of a planet with incomprehensibly placid natives.



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Episode complete credited cast:
David Hillary Hughes ...
Walt Davis ...
Klingon Soldier
George Sawaya ...
Second Soldier


War! The Klingons and the Federation are poised on the brink, and then war is declared. Kirk and Spock visit the planet Organia. Organia, inhabited by simple pastoral folk, lies on a tactical corridor likely to be important in the coming conflict. Whichever side controls the planet has a significant advantage. But the Organians are a perplexing people, apparently unconcerned by the threat of the Klingon occupation or even the deaths of others in their community. Finally, Kirk and the Klingon commander Kor learn why, and the reason will change Federation/Klingon relations for decades to come. Written by CommanderBalok

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Release Date:

23 March 1967 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


John Colicos intended to reprise the role of Captain Kor in a later episode Star Trek: Day of the Dove (1968), but scheduling conflicts with Anne of the Thousand Days (1969) prevented this. The role of Captain Kang (Michael Ansara) was written to take the place of Kor, and the performances of both actors were so excellent that they became equally legendary. See more »


When Kirk is tossed into the cell and hits the "stone" floor, it's obviously a mat (to cushion the actor's fall). See more »


Captain James T. Kirk: What would you say the odds are on our getting out of here?
Mr. Spock: Difficult to be precise, Captain. I should say, approximately 7,824.7 to 1.
Captain James T. Kirk: Difficult to be precise? 7,824 to 1?
Mr. Spock: 7,824.7 to 1.
Captain James T. Kirk: That's a pretty close approximation.
Mr. Spock: I endeavor to be accurate.
Captain James T. Kirk: You do quite well.
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Referenced in Star Trek: The Animated Series: The Time Trap (1973) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

Peaceful Organians, Klingons & Federation At War
6 January 2017 | by (United States) – See all my reviews

Season 1, episode 26. The Klingons and the Federation are at wars with one another. The planet Organia is the perfect planet to occupy during this war - it might give an advantage and both sides know it. The Organians are a peaceful group of people that do not like violence of any kind. Kirk and Spock beam down to the planet in order to warn them of the impending danger of the Klingons and offer the Organians protection against them. The Organians refuse Kirk's offer and the Klingons arrive and beam down quickly to take the planet over. The Klingon commander Kor quickly finds the Organians with Kirk and Spock who have been disguised as Organians by the Organians themselves and it fools Kor but only for a short time. Kor then holds Kirk and Spock in a cell while the Enterprise, with Sulu in command, waits for more of the Klingons to arrive along with the Federation to begin the war. The Organians will only remain peaceful as the tension builds and it puzzles Kirk, Spock and even the Klingon Commander Kor. Who or what are these peaceful Organians? It will take Kirk, Spock and Kor working together to find out in the end.

I really enjoy the Klingons vs the Federation episodes - this one is good.


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