The Vikings still raided across the sea when the Norman William was king of Saxon England. Their fierce sorties struck terror into the little hamlets, and left columns of black smoke on the horizon, and weeping widows on the hillside.

Edric the young Wolfshead follows the Viking Ragnar Lothbrokson to Norway determined to avenge the death of Isolda, his cousin, reported killed on such a raid. When Simon du Lac hears this he is filled with frustrated rage and hate.

The hunter and the hunted, chasing across the heaving grey sea to a dark fate in the wild mountains, enmeshed in an irrevocable blood vow.