It's been 3 years, 1 month, 1 week and 6 days since Sherry has seen daylight. When things went wrong up above, she was sealed off from the world in a bunker with her family. But when they run out of food, Sherry and her dad must venture outside. There they find devastation, desolation...and the Weepers: savage mutant killers. When her dad is snatched, Sherry joins forces with gorgeous but troubled Joshua – an Avenger, determined to destroy the Weepers. But can Sherry keep her family and Joshua safe, when his desire for vengeance threatens them all?