It’s every parent’s worst nightmare: the call that comes in the middle of the night. When Kat Jenkins awakens to the police on her doorstep, her greatest fear is realized. Her nine-year-old son, Ethan, is missing—vanished from the cabin where he’d been on an overnight class trip. Shocked and distraught, Kat rushes to the campground, but she’s too late; the authorities have returned from their search empty-handed after losing Ethan’s trail in the mountain forest.