 Sergeant Carlos Olivarez(Buck Jones), of the Mexican Rurales, discovers that Ramon Ruiz(George J. Lewis as George Lewis), his best friend,is in love with dancing girl Consuela(Mona Maris),who caused the death of his brother Juan(Paul Fix.)She is playing Ramon for American swindler Clark(Philo McCullough), who wants to get control of the Ruiz property and develop it for oil. While at the Ruiz rancho, Carlos tells Consuela that he won t allow her to wreck Ramon s life like she did Juan s.She accuses Carlos of attacking her and Ramon goes into a rage at his friend for violating his hospitality and, possibly, Consuela. Ramon s sister, Dolores(Doris Hill),with whom Carlos is in love, believes the worse also. Carlos intercepts a message intended for Consuela from Clark.He enters Clark s camp in disguise, corners the villain, proves Consuela s guilt and wins back the favor of Dolores and the Ruiz family.