In this tense and suspenseful science fiction thriller, Charles Keith (Gregory Peck) is the ground commander in Houston who monitors the space mission of three astronauts. Buzz (Gene Hackman), Jim (Richard Crenna) and Clayton (James Franciscus) have their lives put in jeopardy when the oxygen supply in the space capsule drops. Ted Dougherty (David Janssen) is sent to try and rescue the doomed astronauts. When it becomes clear there is not enough oxygen, it is suggested that one of the men commit suicide to allow the other two to live. Jim, the unit commander, makes an excuse to spacewalk. Under the guise of making repairs, he cuts himself loose from the life line and drifts away into the cold darkness of space. Russian cosmonauts race against time to try and save their American counterparts. An Oscar-winner for "Best Special Visual Effects," the film also picked up nominations for "Best Cinematography" and "Best Sound." It was later retitled Space Travelers.
by Dan Pavlides synopsis