O Segredo da Caverna (1951)

When Rocklin arrives in a western town he finds that the rancher who hired him as a foreman has been murdered. He is out to solve the murder and thwart the scheming to take the ranch from its rightful owner.

A história sobre o desenvolvimento das comunicações entre os Estados Unidos, durante sua rápida expansão no século XIX. A história narra a vida de Ramsey McCay (Joel McCrea), empregado da recém criada associação entre Henry Wells e William Fargo, e de como graças a sua dedicação, a Wells-Fargo chega a converter-se em uma grande empresa de correios e transporte de mercadorias para o Oeste, presente nos maiores acontecimentos de época.

Wells Fargo hires three cowboys to clean up a lawless town.

Aging lawman Ben Stride burns a trail of murderous revenge across a hardscrabble landscape searching for his wife's murderers.

Cheerful outlaw Charlie Boles leaves former partners Lance and Jersey and heads for California, where the Gold Rush is beginning. Soon, a lone gunman in black is robbing Wells Fargo gold shipments. One fateful day, the stage he robs carries old friends Lance and Jersey...and notorious dancer Lola Montez, coming to perform in Sacramento. Black Bart and Lance become rivals for both Lola's favors and Wells Fargo's gold.

Wells Fargo hires bounty hunters to protect its gold transports from the notorious outlaw Glenn Kovacs. Jeff Sullivan, one of the hired gunmen, buys the freedom of Dan Barker, a prisoner who may lead him to Kovacs. When Barker escapes from Sullivan, the other bounty hunters pursue him also, leading to the ultimate showdown between all parties.

As was customary in his late Monogram westerns, Johnny Mack Brown plays an undercover agent in Colorado Ambush. Brown is sent to Colorado to stem the activities of a particularly vicious outlaw gang

A United States marshal uncovers a plot to steal the valuable gold-laden property of ranchers.

A man framed for a series of Wells' Fargo stage robberies and a comical sheriff's deputy join forces to uncover the real robbers, unaware that a U.S. Marshal assigned to the case and the Mayor of the town which is at the center of the robberies, are the leaders of the gang.

Wells Fargo agents Jack Douglas (Kirby Grant) and Bosco O'Toole (Fuzzy Knight) are sent after a gang of stage robbers. Danny Burton (Bernard Thomas, brother of Laura Burton (Jane Adams, is implicated before Jack is able to prove that saloon owner Lee Fain (Danny Morton) is the man behind the outlaw gang.

An obscure entry in the musical Western cycle, Swing, Cowboy, Swing was produced by and starred country & western bandleader Cal Shrum. Shrum and his band, the Rhythm Rangers, are warned away from playing a theater in Big Bend by Cal's brother, Walt Shrum and his Colorado Hillbillies. Ignoring the warning, the Rhythm Rangers arrive at the theater only to be shot at by a masked stranger. With the help of stranded vaudeville performer Max "Alibi" Terhune and his dummy Elmer, Cal manages to catch the mystery shooter who turns out to be Frank Lawson (Frank Ellis). The film apparently did not generate enough interest for a series, but was re-released by Astor Pictures in 1949 under the title Bad Man From Big Bend.

Honest Plush Brannon is a con-man thrown out of the Barbary Coast in San Francisco in the 1880s and headed for the gold rush region of Nevada. He discovers a real mine which lead to several complications.

When Ranger Raymond is killed during a stage holdup, Wells Fargo Agent Whip Wilson assumes his identity.

A former outlaw becomes a Wells Fargo guard, but when the stagecoach is robbed, he becomes a wanted man once again.

In one of his better Monogram Westerns, Johnny Mack Brown goes up against a crooked saloon owner with more than one murder on his conscience. Steve Corbin (Tristram Coffin) and his gang of cutthroats are terrorizing the townspeople of Rimrock, who in self-defense hire Johnny Macklin (Mack Brown) as new town marshal.