S1·E22 Lone Wolf

Thorfinn begins his duel against Askeladd with Canute and Thorkell as witnesses. However, Thorfinn is unable to strike as he stands overwhelmed by the extraordinary mood that overtakes Askeladd after Bjorn's departure. Having noticed Thorfinn's hesitation, Askeladd lays down his sword and provokes Thorfinn into an unarmed fight, which incites Thorfinn's fury.