Jack Bray is a wanderer in the wilderness of a Western town, governed principally by a band known as the 'six-o-one,' a gang of masked riders. While their original purpose was protection and not disturbance, they are temporarily under the direction of a degenerate, Jim Dougherty, keeper of the saloon.
Northwest Mounted Policemen Fitzgerald and Herrick, who are later joined by Indian guide Uncas, have been detailed to track down a gang of whiskey-runners.
Black Sparr, a hard-fighting, hard-drinking rancher, puts his son, Rance, through rigorous experiences to learn the ways of men. Rance thinks himself in love with Vivian Morrow. Vivian, an ambitious girl, longs for a life of finery away from the ranch and succumbs to the proposal of Braden, who offers her luxury.
After being released from prison, "Australia Joe" attempts a bank robbery and escapes. Out west, his gang robs the town-hall and steals papers for some mysterious person "higher up." Joe learns the identity of this man and prevents his marriage to the daughter of a man he has framed.
The Parsons Land Reclamation Company hires "Drive" Garringer to rid the Arizona-Mexican border area of the Triple Arrow gang, who have been attacking their workmen. In Puma City, he discovers that the sheriff and leading citizens protect the outlaws. Meanwhile, Wilma Wharton, the daughter of an aged prospector, hoping to put an end to the advances of the gang leader, agrees to go through a fake marriage ceremony with another gang member, but later discovers that the marriage was performed by a authentic minister.
A film by Ricardo Romero Curbelo, produced by Cimarrón, is one of the few films made in Uruguay with historical recreation and in rural areas. This drama tells the story of the last oriental matrero and his adventures, love affairs and fights with a facón, between horses and grocery stores.
Ranch owner Tex McCloud is convinced there is oil under his property and brings in a drilling rig and equipment to drill for it. But a gang who wants the property wage a sabotage and theft war against him.