In the grim Alaskan winter, a naturalist hunts for wolves blamed for killing a local boy, but he soon finds himself swept into a chilling mystery.

The story of Jim Worth, an expat British police officer starting a new life with his family as police chief in Little Big Bear, an idyllic town near the Rocky Mountains. When his small town is overrun by migrant workers from a massive new oil refinery – the wave of drugs, prostitution and organised crime that follows them threatens to sweep away everything in its wake.