The first film adaptation of Sir Arthur Conan Doyle's classic novel about a land where prehistoric creatures still roam.

Two ranchers get together to fight a common enemy and fall in love.

Escaping from a revolution, the King of a mythical Balkan country heads to the United States. Here he finds a friend in the form of dashing secret service agent Yorke Norray.

About Omar Khayyam of Persia, the poet and mathematician, who wrote the Iranian first solar calendar circa A.D. 1073. His fiancé was forced to marry the shah, but she eventually escaped and, with help of grand Vazir, joined Omar Khayyam. Hollywood made a film based on the same story with Connell Wilde, the life and adventures of Omar Khayyam.

Inspector Killian tries to solve a murder case with his assistant Carney.

Ted Hayden impersonates a wanted man and joins Gentry's gang only to learn later that Gentry was the one who killed his father.

During a rescue of Mary and her father, Bob Bartlett finds a good horse, which later causes him to be mistaken for Butch Coleson, a wanted outlaw. Wounded by a posse, Bob heads for Poker Flats hoping to capture Coleson for the reward.

Jerry Hixon's ranch is being besieged by raiders so Ben sends for his friend Bud. When Bud arrives and finds that the outlaw Texarkana Pete has been captured, he buys Pete's clothes and posing as Pete joins the outlaw gang. But he is quickly in trouble when his masquerade is exposed.

There is a feud on the Colonel's ranch between his foreman Longrope and some of the hands. The Colonel is firing those that don't get along with Longrope and it looks like Wally will be next. But things change when Jim overhears Longrope's plan to rob the Colonel. Longrope shoots Jim and this sends Wally into action.

As youths, Carl Pfeiffer and Henry Block came to America from Germany. Pfeiffer became a wholesale shoe dealer, while Block became a banker. In spite of their lines of work, they apparently save most of their energy for their unending arguments with each other. The latest dispute involves the Great War (the film takes place in the days just before America became involved).