A mysterious master criminal known as The Voice plots with his gang to sabotage the Milesburg Oil Company, but the rightful heir has a secret army of her own to protect her rights.
Against explicit orders, a vainglorious cavalry major insists on counterattacking a gang of hostile Sioux Indians. His captain refuses to comply and is arrested for insubordination and cowardice.
Dick Rawlins, a cowpoke on the Jackson ranch, is in love with Inez, the beautiful daughter of the ranchowner; planning to ask Inez to marry him, Dick goes to town to buy her an engagement ring, eventually going into hock to Bob for $500. When Dick returns to the ranch, he learns that he has been fired as the result of a mysterious stranger's testimony. Dick goes to the bunkhouse and sacks out; while asleep, he dreams that at Bob's request he has faked a suicide in order to avoid paying his debts.
