Ranger Bill Williams goes to prison to get information on Chuck Adams. Then a fake posse chase gets him invited into Adams' gang. But just as he learns who Adams' boss is and is about to make his move, his cell mate who escaped from prison returns to identify him.
Twelve renegades dressed as Indians kill the parents of two brothers. The brothers who have similar birth marks then separate. Ten years later a man known as the Rawhide Terror is murdering the renegades who are now town citizens. Everyone is after the Rawhide Terror and the two brothers are destined to meet again.
An accomplished aviator sets out to locate treasure hidden by one of his ancestors. He encounters interference from various adversaries.
Mary and Bobby Trevor are castaways befriended by Tarzan. When Lord arrives, looking for the family heir, Black John tries to fill that role and marry Mary in England. Tarzan shows up and marries her instead.
When respectable Lloyd Norwood becomes infatuated with moll Goldie Lewis, he falls into a life of debasement, which results in his being accused of the murder of gangland henchman Joe the Swell. Norwood's wife Mary, convinced of her husband's innocence, determines to clear his name. Disguising herself as a vamp and infiltrating the underworld, Mary extracts a confession from the real murderer, Pussyfoot Connor, who is duped by Mary into believing that he sees the ghost of the murdered man. Later, in order to have witnesses to the story, Mary takes a midnight dinner with gang leader Jack Frost, arousing the jealousy of Connor, who enters and accuses Frost of instigating the murder. The police, alerted to the scheme, rush in and arrest the criminals.
Dreamer dairyman Phineas Dobbs of Cow Hollow suddenly acquires a fortune when oil is discovered on his ranch, and celebrates by throwing a party for the whole town. One day a young woman comes to town, delayed by train trouble. Dobbs rescues her from the town bully, and agrees to follow her to San Francisco.
Set in the Northwoods of Canada, Tom Mix stars as Donald MacTavish, the newly appointed head commissioner of the Hudson's Bay Company. This promotion infuriates MacTavish's rival Angus Fitzpatrick (Frank Clark) who wanted the job. Angus Fitzpatrick takes his anger and resentment out on MacTavish then sets out to get MacTavish fired.
Lassiter quits the Texas Rangers and spends his life in pursuit of a group of Mormons who kidnapped his married sister. In a town on the Utah border, he meets the Withersteens and falls in love with their daughter, Jane. He also befriends Venters, and helps him track down some bandits who have been rustling the Withersteens' cattle.
John Rand, having lived in a small town his entire life, dreams of possessing wealth and power in New York. Napoleon Bonaparte has long been his ideal, and one day he feels a message from the departed general urging him to take up the fight for world supremacy. He goes to the city ready to begin the battle, and there, aided by his Napoleonic visions, John amasses a great fortune, ruthlessly destroying everyone who presents an obstacle to his lust for power.
Harley Hennage, a gambler, loves Marie but remains silent when he realizes that she is in love with Oliver Corblay, a prospector. After Corblay and Marie marry, Harley moves to the distant town of San Pasqual and does not see his old sweetheart until her husband is killed while staking a claim in the desert.