A Good Treason

S4, E1: Entry to Valhalla eludes Ragnar but as he lies in his sick bed in Kattegat events unfold beyond his control. Bjorn orders the arrest of Floki for Athelstan’s murder while in Paris Rollo betrays the last of his Viking supporters to strengthen his position in the French Court. Meanwhile in Hedeby Kalf announces joint Earldom with Lagertha but is power-sharing Kalf’s true intention and is Lagertha actually willing to share what once was hers?