Flight to Mars is the second American film of the postwar era (after the previous year's Rocketship X-M) to depict a manned space trip to the Red Planet. Leading-man responsibilities are evenly divided between Arthur Franz as brilliant scientist Dr. Jim Barker and Cameron Mitchell as two-fisted reporter Steve Abbott. Both men make the journey to Mars, finding time along the way to battle over the affections of leading lady Virginia Huston. Upon landing on Mars, the earthlings learn that planetary leader, Ikron (Morris Ankrum, a fixture of 1950s sci-fi), intends to conquer the world. Fortunately a group of good Martians are on hand to lend moral and physical support to the heroes.