A prospector discovers natural cement and suggests it should be used for a new dam. But this is the last thing the badmen of Trail End want, as they have a monopoly of the wagons needed to haul rocks to the site. A pretty sheriff notwithstanding, it's a job for a singing marshal.

Johnny Mack Brown is back as Nevada Jack McKenzie in Frontier Feud. Once again, Nevada and his grizzled sidekick Sandy (Raymond Hatton) are US marshals posing as drifters. Rancher Joe (Dennis Moore) is accused of a series of murders, but Nevada and Sandy manage to prove that another man is the guilty party.

After escaping from jail, outlaw Wes McQueen is convinced by his old partner in crime to do one last heist.

Taggart and his men are breaking wanted outlaws out of jail and then killing them for the reward money. Marshal's Whip, Jim, and Texas have a plan to trap the gang. Whip poses as a wanted outlaw while Jim joins Taggart's gang and helps break him out. But there is trouble when gang member Mike, wanting a bigger cut, double-crosses everyone.

Lawman Wyatt Earp and outlaw Doc Holliday form an unlikely alliance which culminates in their participation in the legendary Gunfight at the O.K. Corral.

John Clark (Bob Steele) and his deaf pal, Bootch Collum (Buck Connors), are trailed by U. S. Marshal Lamar Bly (Jack Rockwell)...

At the height of the frontier era, a train races through the Rocky Mountains on a classified mission to a remote army post. But one by one the passengers are being murdered, and their only hope is the mysterious John Deakin, who's being transported to face trial for murder.

Set on the Mexican border in 1850, Bad Men of the Border was the first of seven Universal Westerns starring handsome Kirby Grant, a former singer from Montana who had earlier acted under the name Robert Stanton. The series, Universal's last attempt at competing with Republic Pictures' many streamlined B-Westerns, also featured the bucolic Fuzzy Knight as Grant's sidekick. Grant and Knight are undercover U.S. marshals tracking down a gang of counterfeiters. To their surprise, they are soon assisted by a beautiful Mexican dancehall performer, Dolores Mendoza (Armida), who proves to be an undercover agent as well, in her case for the Mexican rurales headed by Captain Garcia (Francis McDonald).

A US marshal goes undercover to bust up a bunch of rustlers.

Riders of the Dusk is another of Monogram's formula Whip Wilson westerns. Since the studio couldn't build an entire film around Wilson's bullwhip prowess, a plot was called for. This time around, it's the one about a U.S. marshal who searches high and low for a mysterious masked desperado. The mystery angle is minimal, since seasoned movie fans will be able to determine the mystery person's identity within 15 minutes. As always, Andy Clyde is a tower of comic strength as Whip Wilson's grizzled old sidekick.

With the railroad coming, Nixon is after the ranchers land. Using a stooge land agent, his method is to claim the person they bought their ranches from never had title to the land and their deeds are worthless. Fereral Agent Johnny Mack arrives posing as a gunman. He is quickly onto the henchman and Land Agent and eventually suspects Nixon is the big boss. But he needs the help of ventriloquist Alibi to bring them in.

Dan Ballard, a respected citizen in the western town of Silver Lode, has his wedding interrupted by four men led by Ned McCarty, an old acquaintance who, as a US Marshal, arrests Ballard for the murder of his brother and the theft of $20,000. Ballard seeks to stall McCarty while tracking down evidence that will prove his innocence.