A gang lead by Belle Starr, commits a train robbery which included robbing Jim Hardie who happened to be there. Hardie tries to lure the pretty outlaw out of hiding by tempting her with a top notch race horse as she has a fancy for them.

A rookie outlaw, Al Porter, holds up a stage for $10,000. Jim waiting for the money to arrive decides to go after him alone after learning about the holdup, but requires the outlaw's assistance to drive off an attack by vengeful Indians.

Hardie agrees to join a father searching for his son who is seeking a lost gold mine in Arizona's Superstition Mountains. The men must deal with a lack of water and the fact that the map leads him into lands held sacred by the Apaches.

Hardie is the only witness to a robbery. A young man hoping to get his partner off, wants Jim scared off or killed before his trial. Hardie still hopes to determine who his partner in the robbery was even after John Wesley Hardin arrives.

While on a stage coach, a Pony Express rider, Stan Blake, who Jim knows stops to help them and is found dead down the route. Jim Hardie takes on the man's route and hopes to lure the murderers out into the open after notifying Stan's wife.

Jim is sent to negotiate a right-of-way for Wells Fargo stagecoaches through Sam Brundage's property as a shortcut. His price - convincing Brundage's neighbor, John McCloud, to share his water in a river he dammed up with the Brundages.

Hardie investigates a stagecoach holdup where white men posing as Indians kill the driver and guard and left a pretty passenger for dead. Billy the Kid rescues the stranded lady who convinces Hardie Billy didn't rob the stage.

At the annual auction of Wells Fargo's unclaimed luggage a man and a woman Hardie is following bid vigorously on a battered suitcase. Hardie wins the auction. He is pistol whipped and the suitcase is stolen which may contain stolen money.

Jim Hardie is called in when a stagecoach is robbed near the Arizona/New Mexico border. He is told that the only thing taken was a yellow mongrel dog. Investigating further he learns that the dog's collar may provide evidence to a murder.

Hardie, sent by Wells Fargo, tries to clear a young man he hired for them charged with murder when he's found standing over a dead man with his gun still smoking. With no time due to a quick trial, Hardie is forced to act as his lawyer.

Hardie, sent by Wells Fargo, tries to clear a young man he hired for them charged with murder when he's found standing over a dead man with his gun still smoking. With no time due to a quick trial, Hardie is forced to act as his lawyer.

A Wells Fargo ship captain is charged with delivering jade worth $20,000 in the Barbary Coast. Instead the jade is stolen and he is charged with the guard's murder. It is up to Hardie to prove his old friend is innocent and find the jade.

When a train carrying a Wells Fargo express car is robbed, Hardie is assigned to recover the stolen money. His efforts are handicapped by a new trigger-happy detective he is training who disapproves of Jim's methods as being too soft.

Hardie is ordered to track down the man who murdered a Wells Fargo messenger. He is helped by the driver who recognized the killer and is willing to testify. The town is wild and Hardie is surprised at the actions of several people.

Hardie is ordered by Wells Fargo to escort General Sheridan who hates Indians by stagecoach to Fort Laramie for a meeting with the Sioux tribe to create peace in the area. Attacking outlaws may ensure that the powwow never comes to pass.

Rather than spend Christmas with friends as he planned, Hardie is sent to track gunrunners who are transporting weapons illegally across the Mexican border at Laredo to gangs who say they are insurrectionists.

When a Wells Fargo office is robbed and one of Jim Hardie's friends is murdered, Hardie is doubly intent on solving the crime. With the help of an aging sheriff and a spunky boy, Jim sets a trap to lure the criminals to expose themselves.

Pretending to be hardened convict, Hardie escapes from prison with a felon who stashed the proceeds from a stagecoach robbery before he was captured. The Wells Fargo detective hopes that his new partner will lead him to the hidden loot.

Jim Hardie agrees to having Wells Fargo take a woman as cargo who is wanted as a material witness in a San Francisco political corruption investigation. He is forced to guard her after the detective assigned to escort her is murdered.

A young man stranded in a remote town is looking for a job working with horses. Jim Hardie befriends him along with a cranky softy and he returns the favor by helping Hardie solve the murder of a Wells Fargo agent.

Hardie attempts to find a gang of outlaws who specialize in stealing buffalo hides from a buffalo hide buyer, Fresno Keeley, backed by Wells Fargo. He suspects one of those involved is Billy Thompson, brother of Ben Thompson.

When Wells Fargo is accused of stealing high grade gold ore from the Walking Mountain mine's wagons, Hardie is sent to the mine to investigate after another Wells Fargo investigator is killed in a mine accident after two days on the job.

Hardie offers an old outlaw he sent to prison, not known for his trustworthiness, the opportunity to earn a parole and a reward if he will lead a posse into an outlaw stronghold and help rescue a United States senator from his kidnappers.

An outlaw gang abducts a pretty woman doctor to operate on one of their wounded confederates. Hardie desperately attempts to rescue the young woman as the local Wells Fargo agent's wife needs her assistance during a difficult childbirth.

Hardie delivers a race horse to Wells Fargo employee Ken Hunter to use in the race for land in the Oklahoma Strip to stake out a Wells Fargo depot. When there is no word from him, Hardie is sent to locate the missing man and the horse.