Star Trek (1966–1969)
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Assignment: Earth 

While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.


Marc Daniels


Gene Roddenberry (created by), Art Wallace (teleplay by) | 2 more credits »

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Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
DeForest Kelley ... Dr. McCoy
Robert Lansing ... Gary Seven
Teri Garr ... Roberta Lincoln (as Terri Garr)
James Doohan ... Scott
George Takei ... Sulu
Nichelle Nichols ... Uhura
Walter Koenig ... Chekov
Don Keefer ... Cromwell
Morgan Jones ... Colonel Nesvig
Bruce Mars Bruce Mars ... First Policeman
Ted Gehring ... Second Policeman
Paul Baxley Paul Baxley ... Security Chief


When the Enterprise is assigned to observe Earth's history in 1968, suddenly it intercepts a transporter beam which originates at least a thousand light-years from Earth, bringing aboard a humanoid alien 'agent Gary Seven' holding a black cat called Isis, who warns them to step back and let him go to accomplish his mission to save Earth; initially phaser-struck down, he manages to beam himself away, actually on a mission to prevent a nuclear rocket being launched at McKinley base because earth is socio-politically not ready for its technological progress. He assumes a classified identity to override a powerful computer, and mistakes the wrong girl, Miss Lincoln, for another agent; the computer reports both other agents he seeks are deceased in an accident. Meanwhile Kirk and Spock beam down to investigate if the alien isn't hostile, realizing the risk of changing their own past. When they get on his trail, the girl sees Spock's ears, calls the police and Seven gets away; they must ... Written by KGF Vissers

Plot Summary | Plot Synopsis


TV-PG | See all certifications »


Official Sites:

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Release Date:

29 March 1968 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
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Did You Know?


The name "Roberta Lincoln" is a feminine version of Robert Lincoln. Robert Todd Lincoln was a lawyer, politician, and businessman who had a long career and was present at or near the violent deaths of three USA Presidents: Abraham Lincoln (his father), James A. Garfield, and William McKinley. The idea may be that in the "Assignment" spin off series, she would "just happen" to be near a lot of historical events including assassinations. It is unknown if the writers intended any such allusion, as Roberta has very little in common with Robert Todd Lincoln. See more »


When Scotty is looking for Mister Seven, some of the shots of the Saturn rocket are of when it's being transported to the launch pad. See more »


[first lines]
Captain James T. Kirk: Captain's log. Using the light speed breakaway factor, the Enterprise has moved back through time to the 20th century. We are now in extended orbit around Earth, using our ship's deflector shields to remain unobserved. Our mission - historical research. We are monitoring Earth communications to find out how our planet survived desperate problems in the year... 1968.
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Alternate Versions

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

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User Reviews

Robert Lansing's credit
25 January 2007 | by pressman58See all my reviews

I noticed a few comments regarding Robert Lansing not being in the acting credits for the Assignment: Earth episode. Lansing was actually listed in the show's opening credits, along with the episode title. I believe he's the only Star Trek guest star to be introduced in such fashion, perhaps giving an early clue that the episode was indeed intended as a pilot for a new show. What's sad about Gary Seven (Lansing's character) not receiving his own show is that we missed out on a chance to watch Terri Garr develop her role as unwitting secretary Roberta Lincoln. Garr has since gone on to establish herself as a fine actress, both in comedy and drama. And she came back to science fiction with her role as Richard Dreyfuss' wife in Close Encounters of the Third Kind. Among the best shots from the Assignment: Earth episode is the NASA footage of a rocket's stage separation high above the Earth. And who could forget the (all too) brief shot of Victoria Vetri as Gary Seven's mysterious cat in humanoid form? That appearance of Playboy's 1968 Playmate of the Year (as Angela Dorian) was just another in a long line of guest appearances of sexy '60s sirens on Star Trek.

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