Gregarious old "Doc" Stevens travels the territory in his "store on wheels". What no one knows is that his "store" is actually where he hides his transmitter so he can send information to a gang of vicious criminals.
An outlaw gang tries to kill crusty old Granny Hobbs, a trapper, when she refuses to sell her land, but Roy stops them. The gang then plots to have Granny declared insane so they can take her property, but Granny, Roy and Dale devise a trap for them.
A saloon girl marries a miner, then has him murdered to get a piece of the map to his treasure. She only needs one more piece to complete the map, and that piece is held by her murdered husband's stepson. She determines to get it from him, no matter what she has to do.
Stu Trumbull is idolized by his 11-year-old younger brother Larry. So when Stu robs and kills a man, Larry keeps Roy and Dale from catching him. Rather than turn Larry over to the law for protecting a killer, Roy and Dale set out to set him straight about the dangers of misplaced loyalty.
Thelma, a young and naive friend of Dale's, has fallen in love with a hard-nosed, vicious gangster named Chick Dillon. Dale must talk some sense into Thelma and make her see what kind of criminal Dillon really is before she winds up getting in some serious trouble.
Rancher Jim Barton disappears one day, worrying his wife and housekeeper. What they don't know is that he has been kidnapped by a crooked rancher, wants Barton's land because he knows that gold has been discovered on it.
A wealthy but ailing woman donates a large amount of money to build a clinic. However, the money is mistakenly given to a crook who poses as an armed guard. Roy and Dale set out to capture the robber and return the money.
Every year, during Paradise Valley's Ride of the Ranchers, wealthy rancher Don Jose traditionally leads the ride. However, this year a gang of outlaws plans to attack Don Jose's ranch while he's away at the Ride, in order to take his strongbox which they believe is full of money.
Ruby Barton's husband has been murdered, and the culprit is a former gangster now posing as a harmless old invalid. However, all the available evidence seems to point to Ruby's uncle as the killer. Roy and Dale don't believe it, though, and set out to trap the real killer.
A dying prospector confides to Roy that the map to his gold mine is hidden in a shaft in the old abandoned Bedford Mine. When his widow comes to Mineral City, Roy and Dale set out to help her find the map.
Pat buys Lucky Springs, a dilapidated old ghost town. Its only resident is an equally dilapidated old coot named Webb Jenkins. What Pat doesn't know, however, is that Jenkins has discovered a trove of counterfeit gold pieces on the property.
Dale tells Mayor Ralph Colton that she has some money she wants to invest. However, that's just an excuse for her to investigate her suspicions of Colton's dishonesty. It turns out, though, that Colton is being blackmailed by a bandit gang into protecting them. Complications ensue.
Roy, Dale and Pat assist Sheriff Blodgett investigate the murder of a carnival owner. The chief suspects are a singer and a man with a bullwhip act, both of whom were wooing the carnival owner's daughter.