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 at their disposal. With few allies, they set out to hide, hoping to remain safe until they devise a new strategy. However, the enemy has changed tactics and they wonder how they can rid themselves of their nemesis forever.