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After the first train robbery in American history, Allan Pinkerton partners his wayward son Will with the world's first female detective, Kate Warne. Before they can solve the case, Will and Kate must first learn how to work together.
When a whiskey magnate is found dead in a brothel, the Pinkertons go head-to-head with Sheriff Logan and learn that the truth is murkier than a barrel of Kentucky bourbon.
Will and Kate get more drama than they bargained for when an actor dies during a performance of "Hamlet" and Will is forced to go undercover as a member of a traveling theater troupe.
It's a trail of murder, mystery and revenge as Kate and Will step into an international case between America and Japan.
When a young, idealistic Civil War hero is attacked during a campaign speech, the Pinkertons are pulled into an even dirtier world than they're used to - politics.
Will and Kate uncover a mystery that hits too close to home when a fellow Pinkerton Agent is murdered, and Allan returns to Kansas City to oversee the investigation.
An investigation that begins with a dead dog quickly spirals out of control when Will and Kate find themselves in the middle of a dangerous feud between local farmers, and the railroad barons who want their land.
When a member of the Chippewa Tribe is murdered in town, Will and Kate must unlock the truth from the only witness - a 12-year-old Sioux boy who doesn't speak English - before a race war breaks out in Kansas City.
S1, Ep9 31 Jan. 2015 In Marm's Way The Pinkertons get more than they bargained for when a peddler from New York City goes missing, and a blast from John Bell's past threatens his freedom.
Will grows jealous when an old friend of Kate's comes to town with a traveling boxing league. But when her friend is accused of murder, Kate has to choose between her feelings for the man and her duty to the Pinkertons.
When a medium's prediction of murder comes true, Kate and Will are hired by a troupe of spiritualists for a case that will test their deductive skills - and challenge their beliefs.
Will and Kate investigate a murder involving four former Civil War nurses who are bound together by a terrible secret.
A young woman's husband is abducted and the Pinkertons are hired to negotiate his release. But when the ransom drop goes wrong, the race is on to save the man before it's too late.
A murder coincides with the arrival of notorious Confederate General Sterling Price in Kansas City. As the Pinkertons investigate, Kate finds herself in grave danger when she comes face to face with an old enemy.
The Pinkertons tackle their first cold case after a skeleton turns up on the outskirts of Kansas City. When the search for a suspect leads them to Logan's doorstep, Will and Kate must face the possibility that the Sheriff is a killer.
The Pinkertons are tasked with protecting a notorious criminal awaiting trial. When a brutal snowstorm traps them in the Dubois and the locals get wind of the monster in their midst, Kate and Will find themselves facing a dangerous mob.
Will and Kate investigate the disappearance of a member of the Buffalo Soldiers, a recently-formed regiment of black soldiers.
When a children's' charity administrator is found murdered on the eve of a benefit dinner, the Pinkertons go undercover in Kansas City high society.
Kate and Will take on a case where client and victim are one and the same, after the coach bringing their new employer to Kansas City arrives with a gruesome cargo - a trio of bodies, the victims of foul play.
Robert Pinkerton is in Kansas City to conduct Will and Kate's annual performance review. When Robert raises questions about their partnership, Will and Kate's loyalties will be tested.
