Daughter of Don Q (1946) is a Republic Movie serial. It combines elements of the B-Western genre with contemporary crime films, especially the popular "land grab" plot in which the villain attempts to steal apparently worthless land from the heroine (in this case) because he secretly knows it is worth a fortune. In this case, Dolores Quantero, is the rightful heir to extremely valuable metropolitan land which another family member, Carlos Manning, wants for himself.

Plot

Delores Quantero is the descendant of Zorro-style hero, Don Quantero, who was granted land by the Spanish crown. This grant, which is still legally valid, now covers the business district of the city. Another descendant, Carlos Manning, has discovered the existence of this document and plots to inherit the fortune by murdering his relatives.