Season 1 ends with a mysterious sniper killing residents of Kansas City one by one. Will and Kate race to catch the shooter, unaware that the gunman has his sights set on the very heart of the Pinkerton agency.
Kate and Will investigate a case in which the client and victim are one and the same, after the coach bringing their new employer to Kansas City arrives with a gruesome cargo that includes a trio of dead bodies.
The Pinkertons protect a notorious criminal housed at the Dubois who is awaiting trial. When the locals learn there is a monster in their midst, they form a mob that Kate and Will must contend with during a brutal snowstorm.
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 face the possibility that the sheriff may be a killer.
Will and Kate investigate the murder of a Chippewa tribe member and try to prevent a race war from breaking out in Kansas City. Unfortunately, the crime's only witness is a 12-year-old Sioux boy who doesn't speak English.
A dead body in an alley turns out to be a Pinkerton who was working undercover in Kansas City, and even Allan pitches in to help Kate and Will on the case that ultimately involves a jewel thief, a corrupt businessman and the dead agent's partner.