Muscleman fights sea monsters and Amazon warriors, then returns home to find a race of giants living in a valley, into which fellow countrymen are being thrown as punishment for opposing a usurper king and his consort.

The ten gladiators are hired to travel to Arbela, a small country on the outskirts of the Roman Empire to learn if Parthia is planning to war with Rome. Upon arriving, the heroes decide to kidnap the beautiful Parthian queen and spirit her to Syria to serve as a hostage.

Oscar is trying to re-establish an affair with Sandra, a disturbed young woman. Having found her husband Fabrizio shot dead and her young son Ricky standing beside him with a gun, Sandra suffered a complete breakdown and now lives in isolation with her protective mother. The latter saved the young boy from recrimination by placing the gun in his father's hand, making it seem like he committed suicide. However, things are not what they seem...

The story circulates around the classical Black Pirate and his battle against arch enemy Prins van Gould. The Black Pirate is out for revenge on his brothers' killers. He has a blood-planned way to go, and he trusts only to his own rap sword.