 In the meantime he grudgingly introduces Bradley and Walker to his trio of young, beautiful daughters, Venus (Stevenson), Urana (Jergens), and Mercuria (Blair).The two men soon learn that Dr. Lujan was an atomic scientist who fled the civilized world with his family because he fears the havoc being caused by the discovery of nuclear energy.To the doctor's disapproval, his two older daughters easily fall in love with the two attractive strangers and try to help them, while the third, 16 and jealous of her sisters, tries to foil their plans.