A devastating fungal pandemic has wiped out most of society. Dayna and Pax live in an isolated house in the countryside, learning to survive in the world left behind. But when their father gets sick they make a choice that changes everything: they summon help from the outside. And they're not prepared for the betrayal that follows. Dayna and Pax must race against time across a ruthless landscape to save their father. They won't be able to do it on their own, but who can they trust in a world where survival is everything?