A new battle for Kattegat is on and only the gods know who will emerge victorious.
Ubbe is forced into hand-to-hand combat. Floki reaches new depths and is met by a shocking sight. Bjorn sets off for Scandinavia with an old rival.
Bjorn, Lagertha and Ubbe face an uncertain fate as Heahmund’s loyalty is tested. Floki fights to understand the will of the gods. Ivar may have met his match.
Ivar is crowned the new king of Kattegat just in time to welcome Rollo home. Bjorn, Lagertha and Ubbe must rely on unsteady alliances to survive.