On a lonely desert road, a woman hears the voice of her dead child calling out to her, but no one is near.Across the country, a psychic tells a bereaved mother that her child lives, though she believed him to be lost in the wreckage of a car crash many years ago. And one day on a playground, a ten-year-old girl glimpses the image of her deceased twin brother, beckoning to her. As three grieving families find themselves haunted by the voices of their dead children, they come to learn that their children are not dead, as they believed, but have been taken and hidden away at a remote compound, to be used for a single, lethal purpose. To find their children and discover the truth, the parents embark on treacherous journeys that will take them to the very heart of evil, where three frightened children are crying out for help. Can they save them before their innocence becomes a weapon for deadly psychic evil?