Sergeant Peter Knowles has seen it all: in Afghanistan he witnessed death on a level that no-one should walk away from. Returning to Britain, he jumps at the chance to lead a small team in Devon. The task sounds more like a holiday; exactly what Knowles and his men need. The mission: watch Jack Stadler. Jack has always led a quiet life, but now he is suffering blackouts and has violent fantasies. When the first dismembered body is found, Knowles begins to realise he has made a terrible mistake…

Sergeant Peter Knowles has sworn to hunt down the remaining wolves in Britain and kill them all. He wants revenge for the massacre that took the lives of his friends. The wolf packs are scattered and scared, but someone new has started to galvanise them. Someone terrifying. Someone closer to Knowles than he could ever suspect.