Freddy Heflin is the sheriff of a place everyone calls “Cop Land” — a small and seemingly peaceful town populated by the big city police officers he’s long admired. Yet something ugly is taking place behind the town’s peaceful facade. And when Freddy uncovers a massive, deadly conspiracy among these local residents, he is forced to take action and make a dangerous choice between protecting his idols and upholding the law.

Homicide detective John Hobbes witnesses the execution of serial killer Edgar Reese. Soon after the execution, the killings start again, and they are very similar to Reese's style.