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?


The episode title comes from The Life and Adventures of Nicholas Nickleby by Charles Dickens: "It is an errand of mercy which brings me here. Pray, let me discharge it." See more »


When Kirk and Spock stun the first two Klingon guards, the one on the right can be seen bracing himself with his arms as he rolls down the stairs. See more »


Ayelborne: Oh, eventually, you will have peace; but only after millions of people have died. It is true that in the future, you and the Klingons will become fast friends. You will work together.
Kor: Never!
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Referenced in Star Trek: Deep Space Nine: Blood Oath (1994) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

With John Calicos, this can't help but be good
6 December 2006 | by (Bradenton, Florida) – See all my reviews

This is the first episode where you see the Klingons--you know, the ORIGINAL Klingons who look a lot like humans with dirty skin. The bumps on the head and long scary hair are not to be seen--this didn't come until the first Star Trek movie (and even then, they still didn't look exactly like the later Klingons). Fortunately, the leader of the Klingons is John Calicos--a slimy character actor who almost always played villains. He was just perfect for the role and contributed a lot to the episode.

The show starts with Spock and Kirk landing on a planet that is about to be invaded by Klingons. The pre-industrial residents seem to care less about the invasion despite their best efforts to warn them of impending death or slavery. However, before they can go back to the ship, the Klingons land and the guys are stuck among the smiling and somewhat zombie-esquire residents. For most of the rest of the film, Kirk and Spock try to wage war against the Klingons--hoping to get the residents to join them. How this is all handled is truly interesting and a fitting conclusion to the madness.

14 of 17 people found this review helpful.  Was this review helpful to you?

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