The Spaniards under Charles V aim to occupy all of Italy with the help of traitorous allies like Don Lorenzo. Lorenzo conspires to marry off his supposed niece Isabella to Charles V’s nephew, Prince Rodriguez, to confirm Spain’s dominance. The Black Devil, a heroic masked avenger, falls in love with the fake Isabella and takes vengeance on Lorenzo with the help of his friend Ruggerio and his men.

A young deputy tries to sober and revitalize a washed up, alcoholic sheriff to take down a pair of warring gangs of criminals in the Old West.

Maciste's village is attacked by pirates. The women, including Maciste's fiancee Guja, are carried off to Salmanak, where dwells the lair of the blood drinking Kobrak. Maciste vows to rescue them.

Aliens from the constellation Hydra crash-land on the island of Sardinia. A prominent scientist, his daughter, several young technicians, and a pair of Oriental spies are taken hostage by the beings so they can use them to repair their spaceship's broken engine. With that done, they take off towards their home planet, taking the earthlings with them. However, the humans attempt to mutiny against their captors, inadvertently sending their tiny spaceship hurtling into the infinite beyond...

Alberto Nardi is a Roman businessman who fancies himself a man of great capabilities, but whose factory teeters perennially on the brink of catastrophe. Alberto is married to a rich and successful businesswoman from Milan, Elvira Almiraghi who has a no-nonsense attitude and barely tolerates the attempts of her husband to keep his factory afloat with her money.