The apocalypse started six years ago, but Anya Donovan's world ended when her fiancé was turned into a zombie. Drifting without purpose, Anya uses her power over the reanimated to annihilate pockets of the undead. While trading for supplies at a settlement, she hears of a rescue team traveling into Canada.

The rescue mission north comes with risks and, besides her brother, Anya isn't sure she can trust others from the group. After making it through the perils of the journey, she is faced with new dangers and nothing is what it seems.