Rome, 61 BC. Now a member of Julius Caesar's palace, Marcus's gladiator training continues in the city of Rome. But the streets are plagued by vicious gang-war attacks, and Caesar must employ his own gang leader, who learns of a plot to murder him. Only Marcus can go in undercover. But he's in terrible danger. If the rival gang discover him, the price will be fatal. Julius Caesar's isn't the only life at risk...