Pat and a distant cousin are informed that they've co-inherited a ranch which some unscrupulous people covet because of its valuable grazing land.

Outlaws planning to rob Mineral City and seeking hostages attack members of the archeological expedition from the state university. Roy comes to the rescue.

Two irate trappers murder a government agent after he orders an end to beaver trapping in the regin. Pete the peddler a distant cousin of Pat Brady, is later urged to sell the illegal pelts.

Two crafty old codgers arrange to have a strongbox stolen from their own transportation company. The thieves steal Nellybelle in order to haul the loot, thus putting Roy, Dale, and Pat on their trail.

A gang of bandits robs city hall of tax money and escapes in Dale's wagon, which also carries a small baby as a passenger.

Rod Miner, an incorrigible outlaw, returns to his native Mineral City, where his father runs the general store. He is soon pursued by Silver City Marshal Bill Culver, whom he bushwhacks before plotting a means to get rid of Roy.

A ten-year-old orphan called ""Jiggers"" Riley uses a squirrel rifle to frighten Roy and Dale away from the gold mine being illegally operated on government land by the boy's treacherous uncle, Jasper.

Sheriff Tom Blodgett is shot while investigating a rustling gang. When Deputy Morgan seems to hinder attempts to apprehend the gang, Roy realizes that he is in cahoots with them. When Roy, Dale, and Pat are subsequently trapped, Nellybelle actually saves the day by overpowering the badmen.

Sarah Granby, proprietress of a hand laundry, is in cahoots with an unscrupulous man higrading ore.

Roy breaks up a land racket after a local newspaper runs a story questioning a property sale.

In this violent entry, a lady banker murders all the ranchers in oil-rich Lost Valley in order to gain control of the property. She is planning to murder eight-year-old Jamie Jenkins when Roy intervenes.

Amity Bailey and her husband Ezra have been wed for thirty years, during which they've been fantasizing about a European honeymoon they could never afford. When they assist in capturing three thieves, the sheriff gives them a reward which allows them to fulfill their dream.

An influential rancher accuses a young Indian of murdering the town blacksmith. Roy comes to the young man's defense and eventually proves him innocent.

A bad-tempered, ex-champion prize fighter, King Keady, is hiding out after witnessing a murder, and Roy is assigned to guard him from mobster Max Marcella. Meanwhile, the boxer's eleven-year-old son runs away to see his estranged father, is captured by Marcella, and proves his bravery when he risks his life to save his father and Roy from the gangsters.