Twins Jeanie and Jamie King are inseparable. Stuck in a cabin in rural Washington with their alcoholic father, they cling to one another for safety and companionship. Until one night, when their father comes home covered in blood. The next day, he’s gone…and so is Jamie. Jeanie’s whole world is turned upside down. Not only has she lost her beloved brother, but with no family left in Washington, she is ripped from everything she knows, including Maddox, the boy she could be learning to love. Twenty years later, Jeanie is in England. She keeps her demons at bay by drinking too much, sleeping with a married man, and speaking to a therapist she doesn’t respect. But her old life catches up to her when Maddox reappears, claiming to have tracked down her dad.

Lynn McBride has learned much since society collapsed in the face of nuclear war and the relentless spread of disease. As the memories of her old life continue to surface, she’s forced to forge ahead in the snow-drifted Canadian Yukon, learning how to hunt and trap and slaughter. Forget the old days. Forget summer. Forget warmth. Forget anything that doesn’t help you survive in the endless white wilderness beyond the edges of a fallen world. Shadows of the world before have found her tiny community --- most prominently in the enigmatic figure of Jax, who brings with him dark secrets of the past and sets in motion a chain of events that will call Lynn to a role she never imagined.