A pretty young milliner and her grandfather are suspects in a plot to loot the Wells Fargo office.

Eleven-year-old Larry Trumball is loyal to his brother Stu, and thus keeps Roy and Dale from catching Stu after he has killed a man and committed a robbery. Although Larry appears incorrigible, Dale believes that ""fundamentally, he's a fine boy,"" so she and Roy set out to teach him about misplaced loyalty.

An old Western legend has it that anyone who sees the ghost of ""One-Arm Johnny"" will be murdered. Roy and his friends investigate and prove the legend has no sound basis.

Roy and Dale are caught between the fight of cattlemen and homesteaders who want the same land for different reasons.

A government agent poses as a minister's son in order to capture a gang of counterfeiters.

Dude Dalhart and Cherokee Tim arrive in Mineral City and blackmail a bank teller who once killed a man and served a prison term. They threaten to reveal his past unless he helps them stage a bank robbery.

Pat Brady buys a disreputable old ghost town called Lucky Springs, inhabited by an old desert rat named Webb Jenkins who has found a cache of counterfeit gold pieces.

An elderly diabetic is kidnapped and held for ransom by a dishonest employee and his gang. Roy and Dale attempt to find the old man in time to give him the insulin injection he must have to survive.

Rustlers who use trucks are ruining small ranchers in Paradise Valley. Roy's first clue as to the identity of the crooks comes when the ringleader tries to sell stolen beef to Dale's cafe.

Pat Brady and Nellybelle are kidnapped by a gang of outlaws, one of whom coincidentally may be inheriting a million dollars.

Dale helps a young man to escape from jail after he has been falsely accused of the murder of his intended bride's father.

Roy, Dale and Pat help a wounded sheriff to hold the Hannon gang at bay in a desert oasis town near Dead Man's Hills.

A dying prospector tells Roy the map of his gold mine is hidden in the lower end of a shaft in the old Bedford Mine. When his widow arrives in Mineral City, Roy and Dale help her to find the map.

A greedy veterinarian plots to murder an old prospector who has been blinded and is using Roy's dog, Bullet, to guide him to his diggings.

Luke Taylor's gang tries to save him from hanging by kidnapping the Governor during Mineral City's 75th Anniversary celebration. When the gang shoots ex-convict Jim Forrset, suspicion centers around young Bob Arden, whom Forrest has declined to accept as a son-in-law.

An old ex-rancher named Carson, whom the townsfolk believe to be a miser, has been robbed by a confidence man named Hi Talley who has been employed as his bodyguard.

Thelma Young, a waitress in Dale's cafe, is interrogated by an FBI agent because she is romantically involved with Chick Dillon, a cheap thug who subsequently returns to Mineral City and kidnaps Dale and the foolish Thelma.

Jim Barton finds himself in considerable trouble, much to the distress of his wife and housekeeper. He is captured by an unscrupulous rancher who wants to buy his ranch, on which a gold mine has been discovered.

A young whip artist in a carnival is framed in the murder of his boss, who has opposed the young man's courtship of his daughter.

Pat Brady is elected sheriff of Martin County just in time to apprehend the man who shot Appalachian mountaineer Cliff Miller.

When they are unable to find work, two youths turn to crime, even endangering a kindly old couple who befriended them.

A young miner is ambushed when a crooked assayer discovers that he has uncovered a bonanza.

Crafty old Doc Stevens drives around with a ""traveling store,"" actually a bilnd for a transmitter used to send information to a gang of dangerous criminals.

Roy blocks a gang's attempts to murder trapper Granny Hobbs when she refuses to sell her land. When the outlaws threaten to have Granny declared insane in order to take over her property, the clever old lady helps Roy and Dale to set a trap for them.

A town in the desert, not surveyed and thus under no township or county's jurisdiction, is a haven for criminals who are safe from the law in their community. Roy and Pat pose as outlaws in order to invade ""No Man's Land"" and lead the criminals away from their protected area.