Robin of Loxley is chosen by the mystical Herne the Hunter to become his 'son' and champion the oppressed. Gathering a band of comrades around him he fights a guerilla campaign against their Norman dictators, particularly the Sheriff of Nottingham and his deputy, Guy de Gisburne. Later he is succeeded by Robert of Huntingdon, renegade nobleman. This retelling of the legend introduces a strong fantasy element, with black magic and the old religion.
Gisburne has joined the Sons of Fenris and manages to capture Robin and his men as well as the Sheriff of Notingham. With Robin in his power, Gulnar completes his creature using dark magic and sends it on his way.