South of the Rio Grande

Sergeant Carlos Olivarez (Buck Jones) becomes entangled in the machinations of an oil baron, havoc-wreaking bandits, and the femme fatale who ruined his brother. Sergeant Carlos Olivarez (Buck Jones) becomes entangled in the machinations of an oil baron, havoc-wreaking bandits, and the femme fatale who ruined his brother. Sergeant Carlos Olivarez (Buck Jones) becomes entangled in the machinations of an oil baron, havoc-wreaking bandits, and the femme fatale who ruined his brother. Sergeant Carlos Olivarez (Buck Jones) becomes entangled in the machinations of an oil baron, havoc-wreaking bandits, and the femme fatale who ruined his brother.