When a series of bizarre incidents plagues the isolated Pacific Northwest mining town of Hyde River, wildlife biologist Steve Benson and sheriff's deputy Tracy Ellis join forces to investigate, finding themselves drawn to each other as they unearth a terrifying predator.

The eighth novel in the Left Behind series finds the battle between good and evil escalating es Nicolae Carpathia, resurrected and indwelt by the devil, tightens his grip on the people of the world by putting in place a loyalty enforcement facilitator.