Edgar G. Ulmer, the phenomenally fast director of many a quickie horror effort, lensed
Beyond the Time Barrier in Texas. Test pilot Maj. William Allison (Robert Clarke) is hideously disfigured by a mishap in space. In flashback, we learn that Clarke had earlier returned to his base, only to discover that he'd passed through a time warp and that the Earth has been decimated by some disaster or other. He crosses the path of the ruling class, led by the Supreme, and a tribe of mutants, left over from a plague caused by extraterrestrial radiation. Only by returning to his own time can Clarke save the world from this fate (sound familiar?). Augmented with footage from
Fritz Lang's 1959
Journey to the Lost City (aka
The Indian Tomb),
Beyond the Time Barrier tries hard, but is ultimately defeated by its almost-nonexistent budget.