Ten years after a fiery raid kills her family, former cult member Sybilla “Billie” Laure has a completely new identity. She’s settled in rural Colorado with her daughter, hoping for a quieter life. But the world has other plans. With wildfires raging and birds dropping from the sky, Billie wonders if her cult leader father’s apocalyptic predictions are finally coming true. When an intruder murders her husband and kidnaps her daughter, Billie has no choice but to confront the secrets of her past. But Billie’s journey has other perils, too—namely, a police chief hot on her trail, determined to expose the dangers of the defunct doomsday cult. To save her daughter, Billie will have to go back to where it all began—to the ruined compound in New Mexico where the real threat is the truth.