An undercover agent has gone missing after making an odd phone call... FBI agent Blake Wilder is a veteran in her field. From thieves, crooks, killers, to evil doers, Blake and her team have successfully hunted them all down, leaving no stone unturned. When Agent Thomas Hickley disappears and another undercover Fed vanishes, it sends shock waves throughout the Bureau. Blake and her team are asked to tackle this sensitive case, which leaves the Bureau scrambling at every point. After diving headfirst into the investigation, Blake hits a brick wall, one that almost knocks her out. As the case unfolds, a body is discovered, and the Bureau mourns the loss of its agent, forcing Blake to wonder if there’s more to life than fighting crime. While attempting to make sense of it all, the case takes several brutal turns, and Blake finds herself changing course. Some grudges die hard, from cruelty to mass violence. Nothing makes sense, and this serial killer is determined to send a chilling message to everyone in the Bureau.