Just three days after her wedding to Sheriff Paul Davidson, Anna Pigeon moves from Mississippi to Colorado to assume her new post as district ranger at Rocky Mountain National Park, where three young girls have disappeared during a religious retreat. Two of the children emerge a month later, clad only in filthy underwear and claiming to remember nothing of the intervening weeks. The girls are traumatized but forge a bond with the pair of campers who discovered them - a wheelchair-bound paraplegic and her elderly aunt. With the reappearance of the children comes an odd and unsettling presence in the park, a sense of disembodied evil and unspeakable terror small animals are mercilessly slaughtered and a sinister force seems to still control the girls.
