In the modern world, an ancient lineage clings to existence through its last, few survivors. Katarina, a woman whose nature is a chronic choice between survival and humanity, is one of these few. Tucked away in the wilderness of Alaska, Katarina has built a new life, albeit a dark and complicated one. When an infant boy like her comes into Katarina's life, the more nefarious of their kind threaten to take him. Katarina enlists her family and allies to protect the child, but his security may cost Katarina the world as she knows it.