Tyrannical Boston financier Jackson C. Revere travels West to confront his son, who has pledged to support himself in Mineral City despite his father's lack of faith in his abilities.

Craig Ormond arrives in town after he supposedly murdered Andy Norton's father. Andy, who is about to be married, postpones the wedding in order to avenge his father's murder.

Roy is abducted by the Wolf gang, but the leader comes down with a case of the mumps which quarantines the whole group and gives the law a chance to subdue the outlaws.

The leader of a robbery and rustling gang tells Roy and Dale he didn't steal funds from a school and sets out to find the guilty party.

When the offices of the law are turned over to students in honor of Boy's Day, Bob Miner is named sheriff and his unscrupulous uncle takes advantage of the opportunity to acquire adjoining land from an elderly rancher.

When the Castle gang hears Roy and Dale say ""The Key to the greatest treasure in the world is in that book,"" they resort to violence to gain possession of it.

A young witness whose testimony can send the Collins gang to prison is pursued by the outlaws who hope to silence her permanently.

A swift, mysterious desperado called The Larabee Kid has been hijacking stolen loot from thieves who prey on stagecoaches. As it develops, he is actually the son of a slain marshal, seeking vengeance on the outlaws who murdered his father.

Beaver Jones, president of the Paradise Valley Fur Traders Association, is defrauded by his grandson Tim, who is hijacking furs in order to pay off a gambling debt.

Doc Buckland orders George Hooper's herd destroyed because of hoof-and-mouth disease, thus jeopardizing the impending sale of Hooper's ranch. Hooper's foreman murders the doctor and frames Dave Shelton, a mute who expresses himself through his paintings.

Dale's nephew Bob idolizes a dreadful gunfighter who is working as a front man for a gang of robbers.

There is a large reward for the capture of desperado Curt Carlson. A Young man sees the poster and decides to run away from his overbearing father to join the Carlson gang.

Four escaped prisoners try to take over Paradise Valley.

The town scavenger picks up a cache of counterfeit money which was left by outlaws. Roy must save the old man when the outlaws return for their false money.

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.

Roy befriends an ex-convict and gives him a job at the ranch. When several holdups occur, the convict is put in jail, although Roy suspects that someone else is impersonating him.

Roy and Dale are suspicious of a local school teacher's growing nervousness after the Paradise Valley stage is robbed.

Old-timer badman Denver Jones once hid $20.000 in stolen funds near Mineral City, and recent clues have given a gang of outlaws a head start in finding it. With Sheriff Blodgett away, Roy turns for help to former policeman Leo Driggs, who had lost his nerve and retired from the force, but whose fourteen-year-old son Petey believes his father can ""lick his weight in wildcats.""

Johnny Williams, son of a poor storekeeper, hopes to attend college, but his father cannot finance his education unless he joins his unscrupulous partner in a smuggling scheme.

A haughty young woman from Connecticut arrives at the Eureka Cafe seeking her father, who has established himself as Mayor of Red Dog, a nearby ghost town. Dale, who suspects the girl is a ""sweet person in spite of her high-falutin' manner,"" gets Roy to help the ""mayor"" and his daughter to hold onto their property.

Roy and Pat try to learn about a boxer's possible connection with a criminal gang. When Roy frees the boxer from the gang's control, the fighter helps to round up the wrongdoers.

An election for mayor of Mineral City is interrupted when one of the candidates is knifed by a supposedly imbecilic tinker-in reality, the leader of the nefarious ""Shadow Gang.""

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.

Roy's summer camp for underprivileged youngsters is plagued by the presence of a surly juvenile delinquent named Mick, who falls in with a gang of badmen trying to recover stolen loot concealed in a mine tunnel on Roy's property.

When the Mingo Kid over-powers Roy and changes clothing with him, Roy is taken hostage by outlaw Turk Black to be his partner in the planned robbery of the Mineral City Bank.