Caterina finds out that her husband Peter Tzar of Russia, is plotting to kill her. She sets Count Orlov free from prison, Peter's sworn enemy, becomes empress of Russia and leads the Cossacks army against him.

Rod Cooper, an American agent of the CIA, is sent to Paris to discover if colonel Segura, head of a clandestine organization which proclaims itself anti-Castroist, is playing a double game at the expense of the United States. He first tries to make contact with Ms Beckett, who should tell him. Segura's intentíons, but the woman is found killed. Subsequently, Rogerson, another American, presents Cooper to Segura himself and so Rod can enter his organization. Here he discovers that the colonel tries to attract a certain number of Americans to use them in an attack against the president of a state of southern America and thus promote communist expansion. Segura soon discovers Rod's real identity and tries to get rid of him; but the agent manages to reverse the situation and kills Segura in a shoot-out.

Redhead Mary is a girl who dresses like a man to better approach, and rob the jewels worn by the pretty ladies of her time.

Greece is under the power of Rabirius, from which rise a few patriots led by Axel. He is taken prisoner and condemned to die of hunger and thirst. But his brother Leslio, who fears no one, makes him free. The next step Leslio takes, is to dissolve a group of mercenaries, without listening to his brother, who begs her to join the fight for freedom.

Sword in the Shadows (Italian: Una spada nell'ombra) is a 1961 Italian swashbuckler film directed by Luigi Capuano and starring Tamara Lees and Livio Lorenzon.

Friends of Spartacus achieve revenge on the plotter who tries to make political capital out of the rumor that he is still alive. It was shot back to back with Seven Slaves Against the World.

The twins of the recently departed Marcus Aurelius fight it out to see who will become emperor of Rome.

Intransigent magistrate Viola Orlando is targeted by her rivals who set her twin sister Rosa — a high-class prostitute and pornographic photo-novel star — up to impersonate Viola and demolish her reputation. To complicate things even further, Viola is torn between enforcing the law or giving up her seat on the bench to marry her childhood friend.

A warrior protecting a slave girl, who is really a princess, winds up as a gladiator in the Roman arenas.

A Roman soldier falls in love with the daughter of a Greek city's anti-Roman leader.