Ethan and Sophie are a married couple on the brink of separation when, at the urging of their therapist, they decide to salvage their relationship by escaping to a beautiful vacation house for the weekend.
When two bus crash survivors awake to discover that they are the only people left in their small town, they must form an unlikely alliance in a race to unravel the truth behind their isolation. As strange events begin to unfold, they start to question whether the town they know so well is really what it seems.
In the near future, when communications go offline at a remote nuclear power plant isolated in the desert, a young safety inspector, Abby Dixon, is forced to fly out to bring them back online. Once inside the facility, mysterious clues and strange behaviors cause Abby to have doubts about the sanity, and perhaps identities, of the two employees onsite.
