Doc Saxon and his gang rob the Crown City bank but are double-crossed by Carrasco, a Mexican bandit, who steals the gold and leaves Doc and Donovan with nothing.

Gunman Slim joins the Italian Pizza baker Geremia and his two daughters to try in various disguises to get a hidden treasure from a respectable banker.

Major Paolo Altieri of the Paratroopers Corps foils the kidnapping of child, but becomes the victim himself of a violent assault by the bandits. He realises that the criminals have used an experimental machine gun that's used only in his own Corps. Altieri begins to take part in police raids on criminal activities, and ultimately discovers a conspiracy to overthrow the democratic government.

Anna's Sin tells the story of a black American actor (Johnson) who falls in love with a white woman playing Desdemona to his Othello on the Italian stage.

Tony, a mob loan collector, is dissatisfied with his station in life. Though he dreams of one day being rich, he is stuck with the dead-end job of beating up borrowers who fall behind in their payments. After meeting up with Napoli, another mob enforcer who's just been fired from his job, the two hatch a plan. Together, they will con mob boss Manzari out of a fortune, after which they can retire and live in luxury. Manzari, however, is not about to let them go so easily.