Hanna is sixteen years old. She lives with her father in the woods in isolated Finland. And when we first meet her she is stalking a deer through the snow, shooting it with a bow and arrow before finishing the injured animal off with her knife. To say she hasn’t had the most normal of upbringings is not an exaggeration. Her father has trained her to survive, to adapt, fight, and to kill. Now that she is growing up she wants more. She wants to experience the rest of the world. But to do so she must first help kill her father’s old enemy.