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 and a robbery.
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.
Wanted outlaw Bill Longley and Jim join forces to retrieve money stolen from Wells Fargo. Another outlaw working with Longley tricks Hardie into having the $5,000 reward available to steal and then steals Longley's girl with the money.
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.
After a train robbery Jim Hardie is sent to guard a $20,000 payroll. An outlaw gang abducts him and one of the outlaws, using Jim's identification papers, takes his place to rob the local Wells Fargo safe with the help of the female clerk.
When Hardie captures the notorious Johnny Ringo, the outlaw requests that he be able to visit his sister, who is dying, for three days and to keep from the young woman Ringo's criminal background but another man may mess things up.
Hardie is sent to the town of Madden controlled by Effie Sutton when the Wells Fargo stages runs into problem on the line competing with Effie's own S&S stage line. The revolt by the people of Madden results in a murder and holdup.
While riding shotgun to protect a valuable gold shipment, Hardie and his stagecoach driver have an interesting collection of passengers and cargo:a U.S. Army officer being sent to Fort Laramie to stand trial, a married couple and a baby.
Jim Hardie in Deadwood to protect a shipment tries to prove a notorious gunslinger, Billy Reno, has been framed for holding up the stagecoach and murder after he realizes the case against Billy has come together far too easily.
During an attempted hold-up, Hardie guns down a man who the outlaw leader claims was not a member of their gang. Hardie learns the man was an ex-convict who had gone straight after being released from prison and investigates him.
Hardie rides into Bridger to present a reward check to a man who helped prevent a stagecoach robbery. The fearful townspeople claim that they've never heard of the man and when the detective investigates, he discovers the hero's grave.
Jim's train is robbed and he is left without funds in a small town whose businessmen refuse to grant him credit. With the help of a friendly old pickpocket, Hardie manages to alleviate his money problems and bring the thieves to justice.
Jim is sent to investigate the murder of a Wells Fargo agent and finds that the sheriff suspects their new teacher, an ex-convict. Although Jim sent the man to prison, he is convinced that the killer is one of the town's leading citizens.
Wells Fargo manager has second thoughts about a stagecoach guard he recently hired despite the man's lack of references. He remembered that the new guard wore a belt buckle similar to those worn by a notorious family of Texas outlaws.
Jim investigates the murder of a Wells Fargo express agent. His only lead is a young wounded outlaw. With the help of the local sheriff, Jim pretends to be Jesse James and tricks the youthful criminal into taking him to the gang's hideout.
When he arrives at a Wells Fargo office, Hardie witnesses the murder of its agent by a sniper bullet. Hardie quickly focuses on a number of suspects, including two Wells Fargo employees who have dark secrets they wish to keep hidden.
When a stage breaks down, a passenger who is returning home after three years in prison for a crime he said he didn't commit, becomes upset with his treatment. Hardie decides to take a gamble on him with a loan to solve a dispute.
Bob Dawson has been paroled to Jim Hardie and is living at Brisbane, Nebraska where he regales the people with stories he is writing about them. Worried about his stories someone hires Nedy West to kill him and steal his manuscript.
While Jim Hardie is in a town a Choctaw boy shows up with a note from Wells Fargo talking about a boy being ship to his parents from his grandmother. Hardie has to determine if the boy is the boy in the note and where his parents are.
While attempting to deliver a golden owl to its wealthy purchaser, Hardie is attacked and the owl is replaced by one of lead by someone while a Chinese religious society claims the owl was stolen from their temple in China.
After being gunned down by Johnny Reno, Jim Hardie is promoted to District Superintendent but finds he doesn't like office work. He decides to join his replacement to go after Reno. It appears he has an inside source at the El Paso office.
When Butch Cassidy is released from prison, Jim Hardie, who sent him to prison, is tasked with asking him to work for Wells Fargo. While on a train, Butch meets an outlaw friend, Idaho, who with others are planning to rob the train.
So that a stagecoach road through the Dakota Black Hills can be completed, Hardie arrives to negotiate with the Pawnees who have killed a crew's hunter consigning the crew to meager rations and who continually harass the crew.
Hardie arrives in Medicine River to help set up a new office. He is greeted at the office by an employee who is the son of a Cheyenne chief he knew when the boy was young but the locals are unhappy he is to be the driver on the route.
Jim Hardie's task of catching the Manning Brothers is interrupted when his attempt to help a stranded man backfires. The man, John Leslie Nagel, has a $25,000 bounty on him so he trusts no one including Hardie who has no interest in him.
Jim Hardie is sent by Wells Fargo to Comanche, Texas to find the Rucker brothers who are hanging around there. Unknown to Hardie, John Wesley Hardin is there, a cousin to the Rucker brothers and still holding a grudge against Hardie.
Hardie is sent to confer with the Colonel at Fort Chaplin which is closing now that a peace treaty has been signed. Wells Fargo is concerned about a rash of robberies in the area by a gang led by an ex-Army officer who deserted the Army.
Jim Hardie is accompanying a stagecoach carrying a Senator. He has angered the large ranchers in the area with his plan to turn over untitled land to settlers. Three ranchers have hired a gunman to kill the Senator to protect their land.
Wells Fargo is threaten with bankruptcy if they don't find the source of counterfeit Bills of Exchange used to move money. The one man they have caught with them refuses to talk to Hardie forcing him to find the source of them by himself.
Hardie teams up with railroad investigator, Mike Forbes, to solve a robbery of their joint office in Amity, Kansas. As they solve the robbery a second robbery occurs involving a murder and a stabbing causing issues with some Texas cowboys.
Jack Kramer soon to be executed asks Hardy to help his son change his evil tendency in exchange for stolen Wells Fargo gold so Hardy takes the son from an orphanage placing him with a family but Kramer's murderous partner follows.
Jim is going to Dodge to look for two men who robbed Wells Fargo in Yuba City. On the way he helps the Peel family with a broken wheel. In Dodge City Peel's gambling addiction has him losing all his money but it helps Jim solve his case.