Space pioneers are returning to Earth from a trip to Mars when their spaceship is propelled into the future. They land and discover a vastly different Earth than the one they left. All of the elements that went into the 50s scifi genre are here. Space travel, mutant creatures, and life in the far distant future. This film was a better than average film for its time. The effects are poor compared to today but the dialog makes up for it. The color is sharp and clear and there is a good cast to make it enjoyable. Pull up a chair and break out the popcorn. Following the adventures of the newly returned space travelers makes for a good Saturday afternoon viewing.