8th Century Sweden: Erlan Aurvandil, a Viking outlander, has pledged his sword to Sviggar Ivarsson, King of the Svears, and sworn enemy of the Danish king Harald Wartooth. But Wartooth, hungry for power, is stirring violence in the borderlands. As the fires of this ancient feud are reignited Erlan is bound by honour to stand with King Sviggar.