It is 1850 and California has joined the United States but law and order there is in the hands of brutal and corrupt men who oppress the Mexicans. The US send Captain John Carroll (Tom Keene) to investigate, he soon falls foul of Harris (William Royle) with an alcoholic judge (Robert McKenzie) in his pocket. Carroll links up with a rebel (Duncan Renaldo) and his sister Paula (Rita Hayworth) to persuade them to switch their allegiance to the USA...
An interesting Western, it lacks much in the way of action compared to other Westerns of the period. The film is mostly notable for being one of Rita Hayworth's (here billed as Rita Cansino) first starring roles.