A group of stranded travelers takes refuge in an old abandoned house, only to find out that they are not the only residents of the building.

Two rich Sicilian cousins sell their farm because they want to help two fake Siamese twins separate and then marry them. After the operation the girls are thought to be dead but then they reappear to con more money out of the two gullible men. Will they manage to do so?

The elderly O'Hara, owner of a fortune in emeralds, offers half of his estate to whoever manages to get him out of jail. The adventurer Don Casey arrives in the town of Guaynas, ruled by the tyrant Villarde, to fulfill that wish.

An electronic ray that can counter any aerial attacks has just been invented by Professor Goodwin, but before he can put in good hands, he is kidnapped by a criminal organization, that starts an international bid for him and his invention among the rogue countries of the world. The CIA sends Agent Sigma 3 to find the Professor before the transaction takes place. His mission takes him from Rome to Tangiers, and to Barcelona.

James Daly is an American special soldier who goes behind enemy territory during WWII. His Objective: to steal top secret SS document that can change the course of the war.