While oil drilling, Hoppy and California discover an underground well - a potential threat to Jebb Hardin's monopoly on water in the region.
Three bodies turn up in a frontier hotel. Hoppy solves the murders and chases the killers through unusually misty and dark locations.
The Bar 20 boys are after Nevada and his gang of cattle rustlers. Hoppy and California join Nevada's gang under assumed names. Johnny and the rest of Bar 20 get directions from Winters and head out looking for Hoppy's signal. But Winters wanders on ahead and gets spotted. This lets Nevada trap them in a canyon and to make matters worse, Hoppy's masquerade has been exposed.
Hoppy and new sidekick California Carlson head to California to help out Lucky Jenkins.
A bandit who robs both Americans and Mexicans is causing each side of the border to blame the other. Hoppy has to settle matters.
Belle Langtry runs a town being taken over by cattle rustlers. She is also a front for the outlaws, who are led by Steve Fraser. Hoppy gets elected sheriff and cleans up the town with help from the Bar 20 boys.
European bad guy Baron Bendor leads some local townsmen in a plot to obtain horses through theft. Hoppy and his sidekicks Lucky and Speedy must find and expose the horse thieves.
Lee Garvin has eloped with the daughter of a railroad man who didn't approve of the marriage. Hoppy steps in when the young man is framed for murder.
Hoppy is busy chasing stagecoach bandits who sing as they rob.
Sue Morgan gets Hoppy and his friends to join their expedition looking for Indian artifacts. Expedition leader Atwood makes a deal with nearby cattle rustler Morgan to loot the Indian treasures instead and sell them. Hoppy is on to their plan and pretending to leave follows them. Not only is he outnumbered by Morgan's men, but California has himself about to be sacrificed in an Indian ritual.
Hoppy and Lucky have been called in to investigate a series of stage holdups. The robbers are taking gold from Colby's mine and Hoppy suspects it may be ex-outlaw Colby himself. When Speedy strikes gold, Hoppy borrows it and announces a gold shipment hoping to catch the gang and their leader.
When he runs for sheriff, Hoppy is beaten by Jerry Doyle, the gutless wonder voted for by every crook in town. When Hoppy moves to have the new sheriff impeached, outlaw leader Tad Hammond hires forty gunslingers to stop him. Stop Hoppy? Hah!
The son of an Army friend is about the join an outlaw gang. Hoppy prevents this and brings the gang to justice.
Dumped by his girlfriend, Buster drives west and winds up in a ghost town called Vulture City, where he appoints himself sheriff.
In the midst of some friendly horseplay on their "Flying R" ranch, the Range Busters, Crash Corrigan, Dusty King and Alibi Terhune, are sobered by the arrival of a buckboard bearing their old friend Larry Meadows and his niece Dorrie Willard. Meadows seeks their aid against a gang of outlaws terrorizing his town. Ernie Willard, Dorrie's brother, has been taken in by Tex Laughlin who is using the Willard ranch as an undercover for his real occupation as a member of a gang of outlaws led by Tim Douglas, a supposed friend of the Willards.
A bank robbery gone wrong leads to a horrific crime and the capture of the most relentless outlaw in Texas...the infamous Johnny Rios. Incarcerated, Rios ups the ante with a daring ultimatum that gives the sleepy town of Wardlaw a rude awakening as their courageous Sheriff prepares for the shoot-out of a lifetime - one that could either put this town on the map or annihilate it all together. The laws they live by are the laws they’ll die by on RETRIBUTION ROAD.
It is the story of Gene's, a Cavalry scout, who manages to quell an Indian uprising.
After Professor Marsh disappears whilst searching for the lost city of Lukachukai, the Three Mesquiteers lead an expedition to find him.
Bill Collins has a look alike the Phantom who beats Houston robbery plan. However the Phantom is shot by Houston’s men. Bill finding him dying isn’t aware that Houston is just about the get him too…
A Cattlemen´s Association hires a detective (Bob Custer) to look into a series of cattle rustlings. To dismantle the plot, an undercover agent will be infiltrating the gang as a bandit.