Mysterious cowboy Bill Patton (as Bob Norton) arrives, "in the land of the West - on the banks of the Rio Grande," at the "Bar-V" ranch. Ostensibly seeking employment, Mr. Patton is revealed, as the plot unravels, an undercover Texas Ranger. Patton wants to get a job at the "Bar-V", and round-up evidence against newly appointed foreman, and all-around snake-in-the-grass, Jack House (as "Buck" Bailey).

Tiring of Broadway, James Sanford "Jim" Richardson moves to Arizona, where he finds trouble of another sort when two woman fall in love with him.

Ranger Bill Kennedy rescues Mildred from the clutches of wicked rancher 'Black' Muller.

Cardelanche, the son of an Indian chief, returns from the East to find himself rejected by his own people. He is made captain of the U.S. army when he saves a detachment of cavalry from a group of renegade Indians, and further removes himself from his race when he develops a relationship with Miriam, the daughter of the Fort Remmington commandant. Lieutenant Parkman (Walker) gets into a fight with Cardelanche when Parkman is demoted, while General Custer's troops are slaughtered by Cardelanche's people. Cardelanche decides that his true allegiance is to his own race, and gives up Miriam to return to them.