A devout detective's faith is tested as he investigates a brutal murder that seems to be connected to an esteemed Utah family's spiral into LDS fundamentalism and their distrust in the government.
As the details of the murders become clear, Pyre and Taba embark on an interstate manhunt, hoping to catch the killers before they complete their list of those to be "blood atoned."
The investigation intensifies after Pyre uncovers details of the Lafferty family's fundamentalist beliefs, sparking a search for missing Lafferty brothers, Ron and Dan, and putting Pyre at odds with his own church leaders.
With evidence now pointing squarely toward fundamentalist Mormonism, Pyre (Andrew Garfield) turns to LDS Church leaders for guidance but is met with roadblocks. Undeterred, he discovers a list of names Brenda's killers plan to murder next.
The ongoing investigation leads Pyre and Taba into untrod woods where they unearth information that challenges Pyre's own faith, and draw more Laffertys into suspicion and custody.