Star Trek (1966–1969)
21 user 4 critic

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.



(created by), (teleplay by) | 2 more credits »

Watch Now

$0.00 (SD) with Prime Video






Episode complete credited cast:
Roberta Lincoln (as Terri Garr)
Scott / Mission Control announcer (voice)
Mission Control Director Cromwell
Morgan Jones ...
Colonel Jack Nesvig
Bruce Mars ...
First Policeman
Ted Gehring ...
Second Policeman
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


See all certifications »


Official Sites:



Release Date:

29 March 1968 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
See  »

Did You Know?


Teri Garr had such an unpleasant time filming this episode, that she refused to ever talk about Star Trek ever since. See more »


The same people can be seen passing - respectively - Kirk and Spock, and Roberta on her way into work, on four separate occasions (once in the same but split scene), going back and forth. The part of the walkway, however, is roughly the same on all occasions. 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.
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Terri Garr speaks for a generation
20 May 2009 | by (United States) – See all my reviews

The thing about this episode that stands out for me is my reaction to it when I saw it premier in early 1968, when I was 14. Terri Garr's character, far from playing as a ditzy blonde, instead read to all of us as a member of the baby boomer generation saddled with the hypocritical bs of those over 30, who we were learning to Not Trust. Thus her character suspiciously blowing the whistle on one and all, ultimately leading to her fine peroration toward the end where she expresses the hopes and fears of a generation. We all marveled at this episode in school during the course of the following week, and all boomer trekies have a soft spot in their hearts for Terri Garr on the strength of this performance. I'd also add that you have to remember we were all too close in memory to the Cuban Missile crisis of Oct 1962 for comfort. The notion of a nuclear war was physically felt back in those days in a way that it hasn't been since, well, 1962.

7 of 9 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Mirror, Mirror question soulaco2
Wink of an Eye question soulaco2
Immunity Syndrome sukhisoo
Captain Kirk's Career magolding-94772
William Shatner timmytony80
An Alternative Universe of Stories: The Entire Original Series Doctor_Omega
Discuss Assignment: Earth (1968) on the IMDb message boards »

Contribute to This Page

Create a character page for: