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

Plot Summary | Plot Synopsis


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Release Date:

23 March 1967 (USA)  »

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


John Colicos was director John Newland's first and immediate choice for the role of Kor. He got the script only two hours before flying to Los Angeles from Toronto, and read it on the plane. 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 »


Kor: You speak of courage. Obviously you do not know the difference between courage and foolhardiness. Always it is the brave ones who die. The soldiers. I hope you will continue to savor the sweetness of your life. You disgust me!
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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

Sometimes Things Are Out of Your Control
28 April 2014 | by (United States) – See all my reviews

Kirk, representing the Federation, and Kor, the Klingon Empire are engaged in a struggle to save the Organians, a docile people who allow themselves to be walked all over. They don't seem to care who dominates them, not distinguishing between good and evil. Kirk and Spock self righteously decide these people need saving, despite their lack of interest. The boys begin to wage war with Klingon forces, altruistically becoming their defenders. They explode bombs and fire weapons. In the meantime, several Organians are killed to make a point. This is the first appearance of the Klingons and they are set forth as evil adversaries. The conclusion is one of the most satisfying moments in all of Star Trek because it shows us that we often lack imagination when it comes to our self centeredness. Everyone is taught a lesson.

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