Synopsis: Twelve-year-old royal king Darius, the tyrannical Rabirius, leads Acastus, a member of the Roman Empire. Gladiator Rezius saves the life of Rabirius and is tasked with leading a military expedition to destroy the band of mountain robbers. In the course of his mission, Rezius discovers that the bandits are in fact rebels led by Darius' sister Sira. Rezius's gladiator friends raise the people to rebellion, Darius ascends the throne, and Sira and Rezius get each other.