A cowhand and his sidekick come to the Texas border country looking for the man who had lured the cowhand's sister in bondage in Mexico. But the man doesn't want to be found and has hired some gunmen to see that he isn't.
Sent to investigate a payroll robbery, Marshall Rocky meets his old friends Ken, Eddie, and Max. He has the serial numbers and when Pop puts on his medicine show they get one of the bills. This enables Ken to see through Sorrell's scheme that threw the blame on an innocent rancher and he sets out to prove it. Written by Maurice Van Auken
This dramatization of the origin of Dr. Gatling's self-named invention stands tall in the annals of the Old West. As cavalry transported the high-tech gun across the dangerous frontier, it blasted its way into history to become the predecessor to the modern-day machine gun.
Jeff arrives in town to see the Sheriff only to find him just killed. The culprit is Clay Wheeler. When Jeff becomes friendly with Letty, Clay sends his man Ortega to kill him. Jeff foils the attempt and gets him to confess that Clay was the killer. With only old-timers Lafe and Bill to help, Jeff heads after Clay and his gang.
In the 56th (and next-to-last serial) made by Columbia Pictures, Montana Deputy Dan Lawson, posing as an outlaw called Laramie, goes to the Canadian northwest on the trail of Bart Randall who is wanted for murder and bank robbery in the states. In Canada, Randall is a little more upscale and uses a hydra-plane and a fake totem to over-awe the Indians. Laramie is aided in his search by RCMP Sergeant Gray and by Donna Blane, who is suspected at first of giving information to Randall, but who is actually a Canadian secret agent investigating Randall's gun-trading with the Indians.
Eddie Dean's assignment is to thwart the efforts of a crooked gambler, Brad Barton, to take over the property of his half-brother Bill Ryan. In order to secure the ranch, which is believed to hold large silver deposits, the scheming relative contracts to have Ryan killed. He then presents a forged will to the court naming himself as the sole heir. Shocked by the tide of events, Ryan's two rightful heirs, his grown daughter Robin and young son "Freckles" are determined to remain on their father's property. Eddie and his sidekick, Soapy Jones, arrive on the scene in time to enter the fight on the side of Robin and "Freckles."
When a group of gunmen are running sharecroppers off their land, rancher Andy Jones sends for his friend Billy Carson to organise the sharecroppers to fight. Andy is soon mortally wounded by the gunmen, but before his death schemes for his no good twin brother Fuzzy to be sent for to impersonate him. The gunmen, witnessing Andy's funeral fear that Fuzzy is Andy's avenging ghost.
Taylor has his men burning out the ranchers. When they kill Clayton, his daughter Helen and her men turn outlaw. The Rangers send Logan, and posing as a cowhand he joins her gang. But Nevada eventually remembers him as a Ranger and they set out to hang him.
Ken Maynard's exceptionally intelligent horse, Tarzan the Wonder Horse, is the star of this western about evil cowboy Steve Frazer (Welch) who gathers horses for slaughter, whose meat is sold to pet food manufacturers. The wild horse Tarzan frees the doomed horses from their corrals, and Frazer convinces the Sheriff that Tarzan is a threat and can be shot on sight. Local cowboy Ken Benson (Maynard) and rancher Pat Riley (Kennedy) work together to clear Tarzan's good name and put Frazier behind bars for his evil deeds.
Bolton's men blow up the wagon carrying the mine payroll and Marshal Crash Corrigan is supposedly killed in the explosion. A man finds his badge and gives it to Bolton. Thinking Crash dead, Bolton gives the badge away and it ends up with the Sheriff. Crash is OK and the Range Busters know Bolton is the head of the gang but that he gets his orders from someone else and that is the man they want.
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.
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.
The Cisco Kid and Pancho are mistakenly identified as leaders of an outlaw band. While the cavalry runs them down, they must hunt down the real bad guys.
During a rescue of Mary and her father, Bob Bartlett finds a good horse, which later causes him to be mistaken for Butch Coleson, a wanted outlaw. Wounded by a posse, Bob heads for Poker Flats hoping to capture Coleson for the reward.
