Roy Rogers, Smiley Burnette and the Sons of the Pioneers go undercover to help Texas Governor Russell Hicks stop World War II Axis sympathizers from blowing up U.S. warehouses.
Tom Weston arriving in town just as the Doctor announces his father's death a suicide, sees the gun is in the wrong hand. When the Bank Examiner announces the bank has no money and Tom's identity becomes known, the townsmen attempt to hang him. Escaping he finds the phony examiner and gets a a confession. Then he plans a trap for the murderer.
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.
When three Texas Rangers try to investigate kidnapped Mexicans being used as forced labor in the mines of Silver Bullet, they are framed for murder by the town's corrupt sheriff.
When a gang of outlaws led by Faro Wilson starts swiping payrolls and terrorizing the residents of a small Western town, courageous Range Busters Crash, Denny and Alibi gallop onto the scene to set things straight.
Clint Ross's skill at fisticuffs earns him the town marshal's job in Cheyenne. Thanks to the string-pulling of political boss Big Bill Harmon, Ross makes it all the way up to the governor's office. But when Ross figures out that Big Bill is a big crook, it's showdown time.
A horse called Brilliant is the only one who knows the location of a gold mine. When Brilliant's owner is killed, the trio known as the Three Mesquiteers (Bob Steele, Tom Tyler and Jimmie Dodd) are mistakenly arrested for the murder.
Posing as a cattle buyer, Hoppy crosses over into Oklahoma where the Jordan brother's and their outlaw gang operate outside the law. After receiving an unfriendly reception when he finds them, he, California, and Johnny rustle their cattle and drive across the river into Texas. He hopes they will cross over to retrieve their cattle and then he can arrest them.
Tex Wyatt is blamed for a murder actually committed by Ransom and Holman, a couple of thieves. Tex manages to escape and is reunited with his two ranger pals Jim Steele and Panhandle Perkins, both of whom are working undercover as performers in a medicine show.
When the night watchman at the bank is gunned down during a robbery, he fingers Barton as the trigger man. When the trial comes up in neighboring Carson City, Gil finds a witness named Shepherd who says that Barton was with him on the night of the murder. Gil gets Barton off, but Shepherd soon cashes a check from Gil at the bank and that raises questions. His father, Judge Phalen, starts an action against Gil, and when his father is shot dead, Gil is blamed for his murder.
Both the Range Buster and Rance and his outlaw gang are looking for stolen gold bullion. To scare people away from the ranch where the gold is hidden, Rance has his man imitating ghosts. The gold is in a steel cased organ but a certain combination of organ stops need to be pulled to obtain the gold.
Fur thieves, who murder trappers when they refuse to give up their pelts at a low price, occupy the attention of the Royal Northwest Mounted Police. The leader of the gang is Victor Renaud, also the mayor of the small Canadian town where the gang is headquartered. Lucky Kerrigan is broken from the mounted service for apparent disobedience to orders, which results in the death of a fellow Mountie. Lucky, working undercover, aids the Mounties in rounding up the gang and gains back his uniform, and also the love of Gabrielle Renaud, Renaud's sister who was unaware of his criminal activities.
Tom Cameron learns that his twin brother is with a group of German spies. They intend to thwart the government's efforts to round up horses for military service.
When the Pony Express disbands, riders Tennessee and Johnny head for Adobe Wells. Tennessee becomes the Deputy Marshal while Johnny joins an outlaw gang. It's not long before Tennessee catches Johny attempting murder. As Johhnny is his best friend, he gives him another chance. But to no avail as Johnny murders a man and this time Tennessee must do his duty.
Newly appointed sheriff Pat Garrett is pleased when his old friend Doc Holliday arrives in Lincoln, New Mexico on the stage. Doc is trailing his stolen horse, and it is discovered in the possession of Billy the Kid. In a surprising turnaround, Billy and Doc become friends. This causes the friendship between Doc and Pat to cool. The odd relationship between Doc and Billy grows stranger when Doc hides Billy at his girl Rio's place after Billy is shot.
In this western, a lonesome cowpoke trots into a town and helps clear his pardner's name. The trouble began when the friend was framed by the leader of the Cattlemen's association who made it seem like he was a rustler. Because the friend was an ex-con, the evidence against him seems airtight. The wandering hero must work extra hard to prove his friend's innocence.