When a deadly Fly Flu sweeps the globe, it leaves a shell of the world that once was. Among the survivors are eighteen-year-old Nico and her dog, on a voyage devised by Nico's father to find a mythical portal; a young artist named Kit, raised in an old abandoned cinema; and the enigmatic Deliverer, who lives Life after Life in an attempt to put the world back together. As swarms of infected Flies roam the earth, these few survivors navigate the woods of post-apocalyptic New England, meeting others along the way, each on their own quest to find life and love in a world gone dark.