Jackson Riley had settled comfortably on the coast with Nadine Dardenne after the end of the world. But one day, five years later, they observe a light in the sky, something unusual in their new darkened reality. After a failed attempt to destroy the threatening object, they find themselves face-to-face with a familiar foe. Once again fleeing for their lives, they must decide how to fight the enemy while no longer possessing any modern technology...