Young Englishman inherits ranch which he wants to sell, but Gene's gonna turn him into a real westerner instead. When new owner Spud arrives from England, Autry convinces him not to sell the ranch but to raise horses for the Army. When both Autry's and Neale's bids are the same, the Colonel calls for a race to decide the winner. But that night Neale has Autry's stable burned.
Cattle are being routinely stolen from a local ranch, and suspicion centers on a local mountain family. But the Three Mesquiteers are wise to the criminals' deeds. But when a ranger is shot and Stony is framed for the crime, it's up to Lullaby and Tucson to prove his innocence.
Trains are being robbed by a gang led by an outlaw on a beautiful white horse. The marshal sent to investigate finds out the horse beings to the girl he's in love with.
On a cattle drive Hoppy, camp cook Windy, companion Lucky, and young Artie Peters encounter an eccentric professor. The professor professes to be searching for the evolutionary missing link, but in reality he is a cattle rustler who uses his dynamite to scatter the cattle in order capture some of them. Hoppy and Bar 20 guys ultimately capture the professor.
Tex is up against a group of hooded outlaws. When he shoots one, he uses the hood to infiltrate the gang. Almost caught by them, he escapes only to be arrested by the Sheriff who thinks he's one of the gang.
Rancher Reynolds has fired his men and hired killers and is now using a crooked land deal to put the other ranchers off their land. Calico finds the reason why when he runs into his old nemesis Porter.
Brade has hired Rattler Haynes to kill Tom Shaw. But when Shaw intercepts a message between the two, he alters it hoping it will cause the two outlaws to fight each other.
Cattlemen's Protective Association agent Tom Wade and his partner Happy are assigned to look into the disappearance of rancher John Carroll, who has been abducted by Carson, who wants to use his out-of-the-way ranch as a base for his smuggling operations. Complications arise as Carrol's daughter, Rita, looking for him, has an unfriendly run-in with Wade, then later is herself kidnapped by Carson.
Young Dave Austin hunts down the varmint who murdered his father in this B Western. Austin tracks killer Jim Hatfield to his hideout, a Mexican cantina where Hatfield and his ruthless gang terrorize the locals. After being deputized, the courageous Austin allows himself to be captured by the gang and devises an ingenious plan to turn the bad guys against one another.
Tyler is a range detective whose brother stands accused of robbing a bank and murdering the bank president. To prove him innocent, Tyler must decipher his only clue, an unusual set of tire tracks.
Deputies Gene Autry and Frog go up against modern cattle rustlers. These rustlers use technology such as, airplanes, radios and refrigerated trucks to steal the cows, butcher them in the field and ship them out before getting caught. This causes the town to bring in a modern NYC detective to catch the crooks, but will Autry and Frog be permanently out of a job?
Cowboy Larry O'Day and his sidekick Lucky Smith happen upon a distraught Barbara Hartwell, who is about to be arrested for the murder of her uncle. With Barbara behind bars, Larry is determined to find the real killer and soon finds himself in the middle of a mystery involving crazed German entomologists and a smuggling ring bringing Chinese "picture girls" across the Mexican border for sale to wealthy Chinese bachelors.
American federal agent Clark Stuart is on assignment in Santa Fe to draw up a trade agreement with the newly installed Mexican governor. Meanwhile, Walter Jamison leads a wagon train from Missouri, hoping to take advantage of the new agreement. Among Jamison's passenger are famed frontiersman Jim Bowie and a very youthful Kit Carson. The destinies of all these personalities intersect when villainous ex-governor DuPrey schemes to undermine the treaty and take over the New Mexico territory for his own vile purposes. Somewhere along the way, Davy Crockett joins the "good guys" in their efforts to thwart the despicable DuPrey.
Just after Kramer goes to Wyoming to start his protection racket, cowboy actor Jeff Carson finishes a picture and goes camping. Attracted to Joyce Butler, he hires on at her ranch and quickly gets caught up in Butler's conflict with Kramer. When the Butlers refuse to buy his service, he has their cattle stampeded.
Harris and Rigby own a circus. Rigby is a counterfeiter and frames his partner. The Mesquiteers learn Rigby is the culprit and get a confession from one of his men only to lose the case when the man is murdered in jail. The Mesquiteers try again and send Lullaby to try and win some of the fake bills in a card game.
Kalmus is after the freight contract held by Summers. When his gang kill Summers, Tex and Duke step in to help Madge keep the freight line going. When they foil the gang's further attempts, Kalmus gets the Judge to jail the two.
Lawyer Bowdre has started a war between the ranchers and the homesteaders planning to take over the homesteaders land when they are wiped out. Rancher Dan Stockton, having just married homesteader Gail Dawson, is caught in the middle. He suspects Bowdre is behind the war and it's not long before he gets a chance to prove it.