Princess Ardala makes yet another attempt to capture the heart of Buck, and contrives to take over Earth as well. To capture Buck, he is misled into believing he has found a 20th century spaceship. But the ship is a fake and he is caught by Kane, who creates several duplicates of Buck in another scheme to conquer Earth.
The Draconian princess returns with another plan to snare the man from the 20th century. This time she captures Buck by luring him aboard a phony 20th-century-type spacecraft. Once aboard the Draconia, Kane (Ansara) uses "Lab 23" to create four duplicates of Buck...another attempt to rule the Earth.