Series: 'The Original Series'
Episode Title: 'Assignment: Earth'
Episode Number: 226
Synopsis: "When the Enterprise goes back to the 20th Century to do research, the crew discovers an alien infiltrator trying to interfere with the test of a missile that could ignite the Cold War into a very hot war."
Original Airdate: March 29, 1968
Story By: Gene Roddenberry, Art Wallace
Teleplay By: Art Wallace
Directed By: Marc Daniels
- Robert Lansing as Gary Seven
- Teri Garr as Roberta Lincoln
- Don Keefer as Cromwell
- Lincoln Demyan as Sergeant
- Morgan Jones as Col. Nesvig
- Bruce Mars as First Policeman
- Ted Gehring as Second Policeman
- Paul Baxley as Security Chief
- Jamahl Epsicokhan - Star Trek: Hypertext - 2.5/4
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