With revolutionary Mexico as a backdrop, a successful local rancher returns triumphant from the war to the praise of townsfolk, and "El General" is ready to take a wife. However the senorita of choice already has fallen for a secret admirer, and a boyhood rival who is threatened by the General's popularity in turn plots against his life.
When the U.S. invasion and the landing of troops in 1847 begins, the former cadet Miguel de la Peña (Jorge Negrete) and his friend Agustin Melgar (Jose Macip) decide to return to the military college and fight heroically in the defense of the Mexican army.
