Winter is approaching, and the Sheriff of Nottingham is boasting of his hunts in Sherwood Forest, where Gisburne's pure-bred hounds chase deer for the court's lavish feasts. Into Nottingham Castle sweeps the Baron de Belleme, with a request to pursue a different prey. Meanwhile, Robin is more concerned for Marion, who has fallen into a dangerous fever, than he is about finding food. But soon, an older fear takes hold of the outlaws. The howls of hungry beasts are heard in the forest, and fiery-eyed spectres haunt the dark shadows. Herne's powers are fading and the Wolves of Winter are running...