For seventeen-year-old Lulu Pangloss, life sucks. She's a late bloomer, her mother is difficult, her absentee dad is a deadbeat, and the world is annoying. But a worldwide plague known as Agent X is about to change all that, transforming most of humankind into terrifying "Xombies" and forcing Lulu to flee for her life to the last place on Earth rumored to be safe...if the other survivors don't kill her first.