An eastern reporter wants to do a history Jim Hardie so his boss who hired Hardie reveals early details about Jim telling the story of a young drifter who became one of Wells Fargo best investigators after coming close to being an outlaw.
Jim Hardie is sent with an Army patrol to Mexico to pick up the prisoner, Yaqui Kid to hopefully recover stolen Wells Fargo money. As they return north through the Yaqui country, the horses are stolen and the men picked off one by one.
Jim has been sent to recover $15,000 stolen by Soldier O'Malley from a Wells Fargo stagecoach. Soldier is a big man and a prize fighter. In addition the town is accusing him of killing their Marshal by breaking his neck but Jim has doubts.
A rash of robberies at Leadville cause Wells Fargo to send Jim Hardie in to straighten out the problems. His ride into Leadville proves embarrassing and maybe fatal when an old lady takes his gun, wallet, and hat as she robs the state.
Jim Hardie has been sent to inspect and buy the Braddock Stage line as a new feeder line. He arrives to find the line runs on a shoestring, has one old stage, and eight horses plus the base station which is not up to the normal standards.
Jim Hardie is sent by Wells Fargo to oversee and guard a shipment of old paper money from Virginia City to San Francisco to be destroyed when an anonymous tip is received that the Coyle brothers plan to steal the rail shipment.
Responding to a request from a friend who is a Wells Fargo agent, Jim visits Josh Wilkins who is worried. His office clerk is the wife of a bad outlaw who escaped jail and he is worried as he does not want to fire her a she needs the job.
Seeing a man about to be lynched, Jim Hardie stops the stage and tells a lie saying the man held up a Wells Fargo stage to save him. He promises to take him to Tucson for trial. When he escapes, Jim must go after him in Apache territory.
Jim Hardie arrives in Kimball as a man forces the Wells Fargo agent into the office to rob him. He wounds the agent and kills another man. Several clues come in but one sounds right except the suspect has helped turn the life of a widow.
When Matthew Land returns to his hometown of Pueblo after three years in prison, he has little support. Jim Hardie is one of the few who helps him by having him return to his old job despite stealing $10,000 from Wells Fargo.
When a Wells Fargo Bank is held up and a man killed, Jim Hardie is sent in to investigate. A local homeless man was arrested when he was caught with a gun owned by a famous outlaw but Jim Hardie knows he is not the real outlaw.
Doc Bell who was once a successful criminal is paroled to Jim Hardy but he is having trouble starting his medical practice. When he takes the same train carrying $50,000 which is robbed, Jim is led to believe that Doc Bell is part of it.
Wells Fargo agent Jim Hardie investigates the hold-up of a Wells Fargo stage with $50,000 taken and the shotgun guard killed. His initial look at the report on the theft has him suspecting the shipper, a beautiful widow owning a ranch.
Jim Hardie is sent to quiet Prairie Lea where he will riding as a guard for a big shipment. He arrives early to see old friends there including a women he helped. After he arrives he sees the man she left who has been released from prison.
A successful and egotistical outlaw decides to post his own reward for Jim Hardie - Wanted: Dead. He is offering $1000 hoping some of his gang will take the bait and be eliminated and perhaps Jim will be eliminated as well.
Jim Hardie is sent to check on a relay station where the agent is sick. On the way there he finds a wounded man and at the station the reception is icy due to the man who has taken over when the agent died leaving his daughter alone there.
While on vacation Jim Hardie becomes involved with the Cole Younger gang as a hostage with a spunky young girl after the Northfield, Minnesota holdup. His primary goal is the protection of the girl but one of Younger's men has other ideas.
After an attempted robbery of $50,000 on a train and two men killed, Jim Hardie is sent to carry the $50,000 on the rest of the trip by stagecoach. He is accompanied by the owner of the money - a lawyer from the east and a pretty woman.
Jim Hardie is sent by Wells Fargo to help the Wyoming governor who supports expanding the railroads across Wyoming. His opposition is against expansion as he is in the pocket of an outlaw named Clancy who doesn't want to see law spread.
Jim Hardie is sent to accompany Vincent Dodd, a jeweler, who is carrying $30,000 in gems from back east. Attempts have been made to steal the gems but Hardie is unable to stop a last attempt and there is a cast of possible suspects.
Jim Hardie decides to ride into an outlaw hangout known as "The Canyon of Wanted Men" to find the one man who can clear Ken Gibbons who is to hang in three days for a murder. The man Fred Kimball has his daughter Jane with him.
Jim Hardie with help picks up the Apache renegade Joe Black wanted by Wells Fargo. However, when his brother Akana sees him captured, the Apaches capture the daughter of the local Wells Fargo agent hoping to make a trade.
When an English woman is killed by a sniper after she gets off a stage, Jim Hardie decides to provide some help to the Sheriff. After talking to the daughter, they learn the woman was there to identify an embezzler from England.
Jim Hardie runs into an unusual case when the Tucson stage is held up again. The outlaws are right in front of him without him realizing it. The lone clue is the special forty-four forty notched bullets the outlaws are using in the holdup.
When the Wells Fargo agent Jess Brown who was elected mayor is killed on election day, Jim Hardie is sent to investigate. Jess was killed with a unique gun that only one man in the area owns but he is found killed before Jess was shot.
Jim Hardie is called in to investigate a $100,000 robbery. His only clue to the whereabouts of the robber is his mistress who was once an actress. Hardie soon finds that he has taken in by her acting abilities when she misleads him.
After $20,000 is stolen from the Weber Falls office and the agent Ben King is killed, Jim Hardie is sent to investigate. He finds no shortage of suspects including three convicts one of which is engaged to King's daughter Anne.
Jim Hardie finds and sends the outlaw who stole $21,000 from the Dilman office to prison. However, the outlaw refuses to give up the stolen money until he receives a letter threatening his wife so he asks Jim for help in keeping her safe.
Jim Hardy is sent to Wolf Creek to setup a new office which requires acquiring property there but the entire town was left to Lucy Potter who inherited the entire town from her absent father but she wants to sell the town.
When Dan Forster dies he had requested Wells Fargo to be his executor. Jim Hardie is assigned the task to track down his brother John Foster who has $100,000 coming. However, Jim learns John is also wanted - Dead or Alive.
Passing through Paradise, California Jim Hardie finds himself backing up the local Wells Fargo agent and Marshal Murphy who he knows in a fight against the Ferguson brothers who own the area and the town when one brother is jailed.
Jim Hardie is after Crail gang after a holdup in Dobie when the sheriff and several others were killed. He catches Johnny Crail but unknown to Jim, Johnny has help from an unlikely source and no one in town will help him with his prisoner.
Jim Hardie is assigned to deliver an expensive diamond to a wealthy Sacramento lumberman's family for a $80,000 payment. The gem he has is a duplicate for a necklace meant to be delivered before the daughter's wedding as a surprise to her.
While Jim Hardie is on a private trip on the Wells Fargo stage line in Arizona, the stage is held up by Pearl Hart and her gang. The stage line is out $5,000 while Jim lost $55. Known to hangout in New Mexico, Jim tries to lure her out.
Jim Hardie is sent to Monterey to help catch the Vasquez gang. The Sheriff captured one of the gang but he refuses to talk. Jim decides to take on the persona of the outlaw Rattlesnake Jim with a bounty on his head to work into the gang.
Jim is sent to capture an outlaw living in Louisiana but hitting Wells Fargo in Texas which means the law can't touch him. While in Louisiana he decides to visit his brother who is getting restless living on the farm so he goes with Jim.
Wells Fargo sends Jim Hardie to Goldfield to help setup a new station that will be shipping silver. Jim is forced to hire an old employee suspected of helping rob Wells Fargo a few years ago in Tonodah when the original hire looks bad.