[1] The film stars Michael Rennie, Karen Steele, Wendell Corey, and Warren Stevens.

A small band of free thinkers sends Garth A7, a cyborg, back in time to 1966 to prevent Professor Sigmund Marx from revealing his new discovery.

He gets her to summon her friend, medical doctor Zeller, to operate on him to remove a homing device used by the Tracers to track him.

TV Guide rated it 1/5 stars and wrote that it is "an honest attempt make a statement, but it is poorly executed".

[2] The Encyclopedia of Science Fiction noted the similarities between this film and Terminator 2: Judgment Day.