Alfonso, following Urraca's advice, has one last tempting card up his sleeve to get Ruy to stay in Leon by his side: breaking off Jimena's betrothal to Orduño and blessing her marriage to Ruy. Ruy will get everything he wants, but in exchange he will have to betray Sancho. Meanwhile, the Arabs, who are looking to destabilize the Christian kingdoms, tell Sancha that the King was poisoned.
El Cid retells from a contemporary perspective the story of the most famous Spaniard in history, a man trapped between two worlds and two cultures. A nobleman, a hero, a mercenary, a vassal, but also a man who could have been king. El Cid was centuries ahead of his time and became transcended by his own legend.