36 user 9 critic


While returning to the Enterprise aboard the shuttlecraft, Kirk, Spock, McCoy and a seriously ill Federation diplomat find themselves kidnapped by an energized cloud.


Ralph Senensky


Gene Roddenberry (created by), Gene L. Coon




Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
DeForest Kelley ... Dr. McCoy
Glenn Corbett ... Zefram Cochrane
Elinor Donahue ... Nancy Hedford
James Doohan ... Scott
George Takei ... Sulu
Nichelle Nichols ... Uhura


The Enterprise shuttlecraft, carrying Kirk, Spock, Dr. McCoy and critically ill Federation Ambassador Nancy Hedford, encounters a mysterious energy cloud which pulls them down to planet Gamma Canaris N. There they meet a castaway, a young man who purports to be Zefram Cochrane, inventor of the Warp Drive over 100 years ago. In history he had lived to be 80 years of age before disappearing somewhere in space. Apparently the same energy cloud which brought the shuttlecraft to the planet also found and rejuvenated Cochrane, making him effectively immortal. Unless Kirk can get themselves released soon, the ambassador, without vital medical treatment, will die. Written by Clive Wilson

Plot Summary | Plot Synopsis


TV-PG | See all certifications »

Did You Know?


All the footage of the shuttlecraft in outer space was reused from Star Trek: The Original Series: The Galileo Seven (1967), some with the Companion animation added in post-production. See more »


The Companion acts as if she has never felt loneliness before. Loneliness is why she abducted Zefram Cochrane in the first place. See more »


Captain James T. Kirk: How do you fight a thing like that?
Dr. McCoy: Maybe you're a soldier so often that you forget you're also trained to be a diplomat. Why not try a carrot instead of a stick?
See more »

Alternate Versions

Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song See more »


Referenced in Star Trek: Discovery: The Vulcan Hello (2017) See more »

User Reviews

Misinterpretation of affections.
18 June 2009 | by BlueghostSee all my reviews

This episode, for some reason, weighs on my mind. For whatever reason, I'm reminded of some cliché love stories depicting the masculine leader of some private firm with a dedicated secretary who secretly has a crush on him, or the captain of the football team or cheerleader who similarly has a secret admirer. There's a difference in social class, whatever it may be, and hence a misinterpretation by the object of affection when presented with friendly interaction by the second party.

That story is presented here, but given the ending that I think most lonely hearts who've been the third wheel in a love triangle have and will always desire. It's the favorable scenario that hearts of both colors, good and ill, hope to achieve for polar opposite reasons. The good heart wants love and affection for the sake of it, and to be happy and content. The bad heart usually has some ulterior motive, usually material gain.

The same suspicion is briefly presented, but we the audience are shown the misinterpretation on both counts. Kirk, Spock and McCoy try to apply Star Fleet know how to put themselves back on track, but, to paraphrase Edward Devere; "Hell hath no fury like a woman's scorn..." Their efforts are for naught.

The truth of why they're there is revealed early on in the story, but the real truth becomes manifest later on, and it's not one that we as the audience, nor Captain Kirk, disagree with.

There are two action sequences, and some usual sci-fi mystery a-la Classic Trek, but once these are set aside (or ever so briefly injected into the plot) the real story is made manifest. We're given the gamut of emotions. From gratitude, to shock, to disgust, acceptance, and all shades of gray in between.

The physical barrier that separate the two primary focuses are analogous for a variety of social rifts. The rich girl who falls for the bad boy who grew up on the other side of the tracks, or the country girl falling for the city kid, and any other iteration of a Romeo and Juliet theme you'd like to transplant.

There's an even deeper story being told here as well. The purported inventor of Warp Drive wants off this world, and vicariously through Kirk and crew, intellect is applied to a dilemma of two hearts. This is where the second action sequence comes in. Through this the one true solution is found. The one solution that works and actually resolves one major problem for the Enterprise's commanding officer, and his department heads.

In this way it's actually a very reassuring story. For with all the strife between the various antagonists of the Star Trek universe, Klingons, Romulans, sundry super-powerful beings and violent primitive cultures in need of quarantine, not to mention the occasional starship captain gone bad or high-tech device gone haywire, there is a spot on some far off secluded and inviting world for two people to spend time with one another, and be happy.

I don't know that it would make a good date episode, particularly for younger generations, but, if you're a classic Star Trek fan, and have a person of whom you are fond, then this might be an interesting diversion for an hour or so.


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Release Date:

10 November 1967 (USA) See more »

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Aspect Ratio:

1.33 : 1
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