A man has had a werewolf curse cast upon him. If he doesn't get rid of it, he turns into a killer werewolf when the moon is full.

The Three Supermen attempt to reclaim the stolen lease of a uranium mine.

The arrival of Francis, who owns a factory of surgical material in New York, caused a real stir in a family composed by her grandfather, Pepe, the son, Jose, and grandson, Pepito. Pepito falls in love with her even though Francis consider him a child. But Don Jose is also in love with the American. This situation creates a difficult situation between parent and child, that Francis seeks to remedy returning to the United States. But the grandfather, Pepe, has the solution ...