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.
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.
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 reading of an incendiary biography of famed Confederate spy Rose Greenhow includes scandalous allegations about Allan Pinkerton. When the book's publisher turns up dead, Will and Kate must find the killer - and clear Allan's good name.
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.
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.
