Star Trek (1966–1969)
36 user 9 critic

The City on the Edge of Forever 

When a temporarily insane Dr. McCoy accidentally changes history and destroys his time, Kirk and Spock follow him to prevent the disaster, but the price to do so is high.



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Episode complete credited cast:
John Winston ...
Bart La Rue ...
Guardian (voice) (as Bartell La Rue)


When an accident causes Dr. McCoy to go temporarily insane, he escapes to a strange planet. There, the search party discovers a device left by a superior, vanished civilization, a time portal that plays the history of Earth for them - but then Bones jumps through it into the past, causing a change in history important enough to make the Enterprise vanish. Kirk and Spock, who fortunately made a tricorder recording, must attempt to go through to just before McCoy's arrival and stop him from changing history in the United States during the Great Depression, where they have no advanced technology available. Written by KGF Vissers

Plot Summary | Plot Synopsis


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Release Date:

6 April 1967 (USA)  »

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Sound Mix:


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Aspect Ratio:

1.33 : 1
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Did You Know?


Clark Gable, who was by no means a leading man in 1930, was not the original choice of reference. The final shooting draft of this script has Edith reference "a Richard Dix movie", but the crew on the set felt Dix's name wouldn't be familiar to viewers in the 1960s. See more »


When McCoy first runs into the area of the portal and away from the landing party, he puts his hand on a brown metal or concrete beam lying flat on the ground (in ruins). However, the beam can be seen moving back and forth with his light touch-obviously a prop. See more »


Dr. McCoy: [tending to an injured and unconscious Sulu] There's a heart flutter. I'd better risk a few drops of cordrazine.
Capt. Kirk: That's tricky stuff - are you sure you want to risk...
Dr. McCoy: [McCoy administers the cordrazine, and Sulu's eyes open] You were about to make a medical comment, Jim?
Capt. Kirk: Who, me, Doctor?
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Crazy Credits

The closing credits are set against a combination background of stills from that episode and previous episodes. See more »


Referenced in Futurama: Where No Fan Has Gone Before (2002) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

One of science fiction TV's finest moments (so far)
29 May 2007 | by (Vulcan) – See all my reviews

Before you read any review of this, you should check out 'a l i e n's review - it's the one with the highest vote count, and it's entitled Ellison. This user does a very nice job of explaining Harlan Ellison's various issues with the way the script was handled.

City on the Edge of Forever is a truly remarkable episode of Star Trek's original series. Written by now-veteran sci fi author Harlan Ellison (with help from Roddenberry and his writing team), and directed by one of the original series' most consistently excellent directors - Joseph Pevney - COEF begins with the Enterprise being bombarded by meteors and Sulu knocked unconscious. McCoy injects him with cordrazine and he is fine, but then McCoy falls on the needle and is injected with an overdose. Deranged, McCoy beams down to a nearby planet and the bridge crew follows shortly thereafter.

The rest of the story involves time travel, a bit of romance and some great acting and directing. Kelley, Shatner, Nimoy and guest star Joan Collins give remarkable performances, and bring this fine story to life in a touchingly dramatic and satisfyingly logical manner.

If you want to get somebody hooked on ST, this is a great place to start.

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