Emma prepares to defend the throne. Magnus and Harald vie to be King of Norway. Unbeknownst to each other, Leif and Freydis both return to Kattegat.
Freydis confronts Erik over his schemes to make her stay, Canute declares a successor and Harald devises an escape plan.
Leif meets an unusual nun on his way to Corfu, Freydis devises a plan for Magnus’ imminent arrival and Harald’s indiscretion worries his friends.
Harald fights the Emir for control of Syracuse. Something causes the Jomsborg townsfolk to fall ill. Magnus Olafsson unexpectedly arrives in Kattegat.
As Thomas and Matt grasp at straws in the present, a sinister plot takes shape in the past.
