A military group led by Henry Silva and Woody Strode are bound by their honor, to execute their orders to kill as many enemies as possible.

On the way to Rome, a thief captures the Duke of Riviera y Fuentes and decides to take advantage of the opportunity to impersonate him. The thief makes his way to Rome in the duke’s place and seduces the mysterious Lucrecia Borgia who always wears a mask. He’s in for an erotic time at Lucrecia’s palace.