The planet he uncovered was a twin to Earth...but so ominously different!

An astronaut enters a vortex and crash-lands on a parallel planet where he's not welcome.

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Main Cast: Glenn Corbett, Cameron Mitchell, Sharon Acker, Lew Ayres, George Coulouris, Dean Jagger, Steve Franken, Tim O'Connor, Jerry Douglas, Arch Whiting

Director: Lee H. Katzin

Writer: Gerald Sanford

Editor:

Cinematographer:

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