From the lands of Vivar, a shadow falls upon the noble Rodrigo Díaz, known to all as El Cid. Unjustly accused of stealing tribute from the Moorish king of Seville, a false rumor sown by envious nobles, he finds himself banished from Castile by his sovereign, King Alfonso VI. With a heavy heart, tears in his eyes, he looks back at his empty halls, his falcons gone, his lands abandoned. Yet, his spirit remains unbroken. A small band of loyal vassals chooses exile with him, among them the steadfast Minaya Álvar Fáñez, and together they ride forth, seeking their fortune and a path to restore their lord's honor.
Penniless and without a king's favor, El Cid must provide for his men. Through a clever ruse involving two chests filled with sand, secured as collateral from Jewish moneylenders, Martín Antolínez procures the funds necessary to sustain their journey. Before venturing further into Moorish lands, El Cid makes a sorrowful stop at the Abbey San Pedro de Cardeña, bidding farewell to his beloved wife, Doña Jimena, and his young daughters, Sol and Elvira, entrusting them to the care of the Abbot Don Sancho. The Angel Gabriel appears to him in a dream, assuring him of future triumphs, a divine promise that strengthens his resolve.
The exiled Cid and his growing company carve out a new destiny through relentless campaigning against the Moors. Town after town falls to his strategic prowess and the fierce loyalty of his men. He sends rich spoils back to King Alfonso, each gift a testament to his continued fealty and a silent plea for reconciliation. These victories, especially the strategic taking of Alcocer, begin to rebuild his reputation and fill his coffers, but more importantly, they slowly chip away at the king's anger.
The pinnacle of his military achievements arrives with the arduous siege and eventual conquest of Valencia. After nine long months, the great city surrenders, and El Cid becomes its new lord. He sends a magnificent gift to King Alfonso, who, seeing the Cid's unwavering loyalty and immense power, finally grants a pardon, allowing Doña Jimena and their daughters to join him in the vibrant city of Valencia. The family is reunited, and the Cid's honor, once tarnished, shines brighter than before.
In a grand court held by the river Tagus, King Alfonso, now fully reconciled, proposes a marriage for El Cid's daughters to the Infantes de Carrión, noblemen of high lineage. Though El Cid harbors reservations about these proud and somewhat haughty young men, he agrees out of deference to his king. The weddings are celebrated with great pomp and festivity in Valencia, cementing the Cid's newfound status and linking his family to the highest aristocracy.
However, the Infantes de Carrión soon reveal their true, cowardly nature. During a lion's escape in the palace, they hide in terror, earning the scorn and mockery of the Cid's loyal knights. Humiliated and seeking revenge, they decide to return to their lands. On the journey, in the desolate oak grove of Corpes, they savagely beat Doña Sol and Doña Elvira, leaving them for dead, intending to abandon them and seek more advantageous marriages.
Miraculously, the daughters are found and brought back to Valencia, their bodies bruised and their honor deeply wounded. The outrage sparks a righteous fury in El Cid. He appeals to King Alfonso for justice, and the king, sharing his indignation, convenes a royal court in Toledo, compelling the Infantes de Carrión to appear.
At the court, El Cid demands satisfaction. His loyal champions face the Infantes and their allies in judicial combat, proving the Carrión brothers' cowardice and treachery. The Infantes are defeated and stripped of their honor, their ill deeds exposed for all to see. To complete the restoration of his daughters' dignity and his family's prestige, new marriages are arranged, this time to the Infantes of Navarre and Aragón, princes of even greater standing. Thus, El Cid's honor is not merely restored, but exalted, his lineage now intertwined with the royal houses of Spain, and he lives out his days as the revered Lord of Valencia.