It is California in 1852 that only recently being surrendered by Mexico to the United States and admitted into the union. Most of the land-owners of California were the descendants of the Dons who had colonized it a hundred years before and whose title deeds bore the signature and seal of a long-dead Spanish king. But, by a loop-hole in the law, the title-deeds of the Dons could not be recognized, and this opened the door of organized gangs of land-grabbers, such as the one led by Joe Kincaid, to operate with a prime excuse for legitimate plunder and robbery. In most cases the law was unable to cope with the situation. Then Rosita Castro, the daughter of Don Pasqual Castro, masked and disguised as a man, organized a band of vigilantes to fight against the tyranny of the outlaws, aided by an undercover federal agent, Jim Kearney.
as Jim Kearney
as Rosita Castro aka Don Carlos
as Joe Kincaid
as Don Pasqual Castro
as Don Luis Espinosa
as Flossie
as Horse Doctor (uncredited)
as Pancho Spiegelgass
as Phineas P. Jones
as Dona Petrona
as Jonathan Hill
as Guadalupe
as Gomez
as Boss Martin
as Sheriff James
as Bull Bangle
as Hill-Billy Boy
as Frisco
