Not all is well on the quiet farm where Tom, Gillian, and their son Graham call home. A mysterious storm hits and before the power goes out, glimpses of weather-related catastrophes on a global scale are being broadcast. Even more unsettling is how they notice that their neighbors, cars, birds, crickets - all are nowhere to be seen nor heard. Among these eerie signs, a soft-spoken man named Silas stumbles onto their property, sick and cold. Maybe it is the apocalypse. The rapture. The end of days. And they are all that is left of humanity.