Everything in ex-Marine Sean O'Connell's life changes in an instant when an unspeakable evil enters a small and secluded Midwestern cottage town during the 4th of July holiday and snatches his wife and son, along with the other residents of the town. This mass disappearance occurs under the guise of a terrorist attack on American soil, and Sean, the lone "survivor," finds himself on the run trying to put the pieces of a puzzle together, desperate in his search to find his family.