Doppelgänger

A planet is discovered in the same orbit as Earth's but is located on the exact opposite side of the sun, making it not visible from Earth. The European Space Exploration Council decide to send American astronaut Glenn Ross and British scientist John Kane via spaceship to explore the other planet.

Cast

Roy Thinnes

Colonel Glenn Ross

Ian Hendry

John Kane

Patrick Wymark

Jason Webb

Lynn Loring

Sharon Ross

Loni von Friedl

Lisa Hartmann