Assuming a new post as district ranger at Rocky Mountain National Park in the wake of the disappearances of three young girls, Anna Pigeon is astonished when two of the girls emerge a month later with no memory of their experiences.

<p>No power. No rules. No help coming.</p><p>The end of the world is just the beginning of the hunt …</p><p>Estes Park Police Chief Marcus Colton and tracker Sam ‘Raven’ Spears have never liked one another, but when a young girl goes missing in Rocky Mountain National Park, Colton hires Spears to help find her. Their search ends after a night of catastrophic events. When word reaches Estes Park that the nation has...