As described in a film magazine review, Don John, brother of
Philip II of Spain, is sent to war with the Moors, the king wishing to be rid of him. Don John loves Dolores, daughter of General Mendoza, but her father does not trust him. Returning in triumph, Don John quarrels with Philip, who stabs him with apparent fatal effect. To save the King, Mendoza assumes the guilt of murder. Dolores threatens Philip with exposure and he signs a pardon for Mendoza. Don John reappears and receives Philip's royal consent for his marriage to Dolores. ==Cast==