Conchita Cordova sings in the cathedral choir in her village of San Miguelito near the Rio Grande. Millionaire oil man John Rannie, whose oil fields have displaced the peasants, desires Conchita, and when he learns that her fiance, Juan Mendoza, has been employed by Adolf Wylie, a German spy, Rannie threatens to expose Juan unless Conchita gives herself to him.
Gladys Brockwell
as Conchita Cordova
Colin Chase
as Juan Mendoza
Vivian Rich
as Dona Sartoris
Willard Louis
as Pedro
Lew Cody
as John Rannie
Barney Furey
as Adolf Wylie
Gloria Payton
as Dolores Mendoza
Fred Whitman
as Neil Mathews
