The film features Fernandez himself as a character named Rogellio Torres. The lion's share of the footage, however, is devoted to the romance between Esperanza, granddaughter of a common laborer, and Jose Luis Castro, the firebrand son of a landowner. Joining a revolutionary movements, Castro is disowned by his father, but Esperanza remains loyally by his side. Later on, Castro's father is killed by outlaws; in seeking vengeance, he sacrifices his own life, while Esperanza carries on his revolutionary work with their young son in tow.
Dolores del Río
as Esperanza
Pedro Armendáriz
as José Luis Castro
Emilio Fernández
as Rogelio Torres
Miguel Ángel Ferriz Sr.
as Don Francisco
Armando Soto La Marina 'El Chicote'
as Reynaldo
Agustín Isunza
as Nicanor
Eduardo Arozamena
as Melchor
Mimí Derba
as Doña Clara
Margarita Cortés
as Hermana de José Luis
Manuel Dondé
as Úrsulo Torres
Salvador Quiroz
as Coronel Rubén Peña y Berlanga
José Elías Moreno
as Coronel Pánfilo Rodríguez