Robert Clarke is test pilot "Maj. Allison" who finds himself propelled through time to the year 2024. His airbase is somewhat different though. It turns out that the world has been hit by an epidemic that has sterilised mankind. Needless to say, those that have survived see him as a bit of a commodity - not least the "Princess Trirene" (Darlene Tompkins) who is the daughter of the suspicious "Supreme" (a sort of "Ming" character, without the costume, played by Vladimir Sokoloff). Anyway, becoming aware of his predicament, our young airman has to figure out a way of returning to the 1960s before...