After Sancha's death, the war between the three brothers is imminent. Sancho sets out to attack Galicia, but in order to do that he must pass through Leon. Alfonso can't decide whether to leverage that moment and attack him or to let him through. Meanwhile, Ruy struggles with the passion between him and Amina, and the pain that Jimena's betrothal to Orduño is causing him.
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.