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.

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.

Bart Morgan controls the town of Cactus City and is keeping all men away from Jane Rankin. When Johnny Day arrives and takes an interest in Jane, Morgan tries to kick him out. Johnny refuses to go and the stage is set for a showdown.

Brown's principal antagonist this time is the town boss, an outlaw who has killed the community's leading citizen. The dead man's grown children want to investigate the killing, but the outlaw puts a stop to this by hiring a dance-hall dame to pose as the kids' long-lost mother. Johnny isn't fooled by this subterfuge nor is his sidekick.

Range Law stars Johnny Mack Brown as "Nevada" and Raymond Hatton as "Sandy", the same characters they played in most of their mid-1940s Monogram westerns. This time, Nevada and Sandy, US marshals both, set out to collar some renegades who've been driving out the local ranchers. It's just possible that one of said ranchers is behind this land-grabbing scheme.

Dan Stanton and Condon are foreclosing on a group of ranchers in order to gain a land-monopoly. They have one of the ranchers, whose property supplies the others with water, killed. Ann Jennings, niece of the rancher, sends for U. S. Marshals Nevada Jack McKenzie and Sandy Hopkins, who organize the ranchers who take over the dead man's property and blast the dam releasing needed water to all the ranchers. Nevada and Sandy, aided by the sheriff, round up Stanton, Condon and their gang members.

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

Billy the Kid and his pal Fuzzy escape from the Marshal and find themselves in the ghost town of Laramy. The city was abandoned because of Sykes and his gang, who are in search of a gold mine.

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 a band of drunken thugs overruns a small Indian Nation town, killing Reverend Goodnight and raping the women folk, Eula Goodnight enlists the aid of US Marshal Cogburn to hunt them down and bring her father's killers to justice.

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.