Earl Wayland Bowman

Chasing a steer across the border a cowboy meets a senorita and stays on making the Mexican Captian jealous. When the Captain plans to have the cowboy killed, the cowboy gets the Captain to agree to a contest between jumping beans. When the cowboy wins he says he will let the senorita decide between the two. But first he rides off to rescue another girl held by the hooded Night Riders and the Captain follows to back him up

Following a rift with his wealthy father, Billy Mathewson, a young Broadway wastrel, escapes with his friend, Dizzy Durby, to the small town of Salino, where his father's company is building a dam. However, a crooked foreman is engaged in making himself rich at the expense of his employer and the villagers. However, Billy defeats the villain, and also wins Elinor, the daughter of a prominent local resident.

In the waning days of WWI, a U.S. "Mystery Ship," sets sail for the coast of Spain towing a submarine. Their mission is to find and sink a U-boat that has been especially effective in attacking Allied shipping. Posing as a harmless schooner, the mystery ship is in fact fitted with a formidable gun capable of sinking a U-boat. Stopping in the Canary Islands to refuel, the crew interacts with locals involved with Germans, and with Germans themselves, including the sister of the U-Boat commander, who is lurking offshore waiting for the coming battle.

The Ramblin' Kid, a cowboy, falls in love with Carolyn June, a beautiful easterner, and wins her after he triumphs in a rodeo in spite of having been doped by his enemy, Sabota the Greek, a crafty racetrack tout.