High school is supposed to be the best years of a girl's life, but when a pandemic breaks out, turning victims into flesh-hungry cannibals, Cindy Scott realizes she's witnessing what may be the end of the world. As the N-Virus spreads, it becomes evident that no family is safe from its wrath. Despite efforts to carry on as normal, society starts to unravel. Once Cindy's popular sister, Audrey, a senior, is infected, the lives of the Scott family are forever altered. Cindy's father, an E.R. doctor, manages to acquire a black-market vaccine to slow Audrey's deterioration, but that isn't a cure. It's only delaying the inevitable. Audrey slowly becomes a zombie, yet she is able to maintain awareness. In fact, she is so aware that she fights going to The Pastures, a "living cemetery" where the living dead are taken to wander fields, safely behind the security of electric fences, where they will eventually decay away to dust peacefully. Cindy's life continues to crumble as everyone she knows and loves succumbs to the effects of the N-Virus. Finally, she realizes her only hope is Nick, her longtime crush and fellow survivor.