Wilkes is alone, struggling to survive on the island once known as Great Britain, thirty-six years after the zombie apocalypse devastated the world. As the young woman makes her way along the ruined landscape, she stumbles across a backpack filled with journals written by a man she will never meet, but who will alter the course of her life nonetheless. Through these yellowed pages, Wilkes relives the worst that life had to offer at the very end of humanity's reign.