Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it.

A cocky reporter turns a small town marriage license clerk into a media celebrity.

Joe and Casey trouble-shoot for the phone company. They try to prove that Joes's girl Ethel's boss Dan is a crook but are trapped by criminals and left in a burning building.

A railroad investigator discovers that there's more than meets the eye to a series of reported Indian attacks against the railroad.

During the Civil War, in Wyoming, horse dealers Joan Britton and Stephen Cook are competing to supply the Union Army with horses. A Cherokee is in the area to stir up the Sioux against the Union just as Cook decides to steal a herd of Sioux horses. Ex-army doctor Jonathan Westgate opposes Cook’s unscrupulous methods as well as being Cook’s rival for the affections of Joan. It seems Westgate is the only one able to prevent a new Indian war.

In 1915, an American adventurer joins the supporters of Mexican revolutionary Pancho Villa.

Questioned as a murder suspect, solid (but drunk) citizen Al Willis attacks his police questioners, is beaten, and swears vengeance against them. Next night, Lieut. Parks is murdered; Willis is the only suspect in the eyes of tough Chief Conroy, who pursues him doggedly despite lack of evidence. The obsessed Conroy is dismissed from the force, but continues to harass Willis, who flees to a sleazy town on the Mexican border. Of course, Conroy follows. But which is crazy, Conroy or Willis?