Shotgun

While the Civil War rages on between the Union and the Confederacy, three men – a quiet loner, a ruthless hitman, and a Mexican bandit – comb the American Southwest in search of a strongbox containing $200,000 in stolen gold.

Will Kane, the sheriff of a small town in New Mexico, learns a notorious outlaw he put in jail has been freed, and will be arriving on the noon train. Knowing the outlaw and his gang are coming to kill him, Kane is determined to stand his ground, so he attempts to gather a posse from among the local townspeople.

The first of a long-running series of Monogram-produced westerns starring Johnny Mack Brown and Raymond Hatton that replaced the Rough Riders series following the death of Buck Jones in the Boston night club fire. Though the next three years featured Brown (as Nevada Jack McKenzie) and Hatton (in his Sandy Hopkins role from the Rough Riders series) as undercover marshals in some form or another, this initial entry had Brown as a lone rider seeking vengeance and he and Hatton's characters were unknown to each other through most of the film. Hopkins offer McKenzie a marshal's job at the end of the film, which the Brown character declined and rode off alone on his quest. This quest didn't take long as by the next film in the series Nevada Jack McKenzie was a full-fledged U. S. Marshal.

Tom Evans (Jon Dawson), nephew of U.S. Marshal Sandy Hopkins (Raymond Hatton), has just trailed his cattle to Yucca City, where he intends to sell to Ben Crowley (Harry Woods), owner of practically everything in town.Tom loses his money in a crooked game ran by Crowley. "Nevada Jack" McKenzie (Johnny Mack Brown), a U.S. Marshal working undercover, watches the game and secures one of the "fixed" decks of cards. Later, Tom discovers Crowley's men rustling his cattle and is shot. Nevada finds him severely wounded and hides him with Jeff Lewis (Sam Flint) and his daughter Mary (Ellen Hall). Sandy, posing as a dentist, arrives in town after a wire from Nevada. The latter confronts Crowley with the crooked deck and also with the fact that Tom is still alive, and demands a partnership from Crowley. When Crowley learns that Lewis is hiding Tom, he decides to have both Tom and Nevada killed.

William Blake, an accountant turned fugitive, is on the run. During his travels, he meets a Native American man called Nobody, who guides him on a journey to the spiritual world.

Two bounty hunters both pursue the brutal and sadistic bandit, El Indio, who has a large bounty on his head.

The girlfriend of the Sundance Kid is on the run, with a price on her head, when she hears rumors that Sundance may still be alive.

An aging group of outlaws look for one last big score as the "traditional" American West is disappearing around them.

Stodge City is in the grip of the Rumpo Kid and his gang. Mistaken identity again takes a hand as a 'sanitary engineer' named Marshal P. Knutt is mistaken for a law marshal. Being the conscientious sort, Marshal tries to help the town get rid of Rumpo, and a showdown is inevitable. Marshal has two aids—revenge-seeking Annie Oakley and his sanitary expertise.

Nevada Smith is the young son of an Indian mother and white father. When his father is killed by three men over gold, Nevada sets out to find them and kill them. The boy is taken in by a gun merchant. The gun merchant shows him how to shoot and to shoot on time and correct.

Cattle king wants Reagan's small ranch, and Latina beauty Lola McLaughlin. His men kill Reagan's pregnant wife. Reagan leaves his tin badge on Consuela's grave, and with Winchester, scattergun, and Colt, rides alone against a hundred.