Overview: Ragnar and Lagertha's fleets depart Kattegat once more for Wessex and this time they bring a group to colonize there. King Ecbert hosts the Norsemen and proposes a deal. Despite the misgivings of some of the other leaders, Ragnar leads his forces into battle once more, but this time as allies of Wessex.
Overview: Lagertha and Athelstan help to set up the Viking settlement. A mysterious wanderer arrives in Kattegat.
Overview: King Ecbert visits the developing Viking settlement as the first harvest is sown.
Overview: There is bitterness in the camp, Floki is angry over the alliance with Ecbert.
Overview: The fleet returns to Kattegat to discover tragic circumstances await.
Overview: Preparations for the Paris raid pick up speed, and Rollo thinks about the Seer's prophecy.
Overview: The Viking fleet causes panic in Paris. The Emperor Charles declares he will remain in the city.
Overview: The Viking army sets out and Paris goes into lockdown as the army prepares the defense.
Overview: Paris is hit with a second assault. Emperor Charles needs to make a difficult decision.
Overview: With one last chance to take Paris, Ragnar, and his Vikings troops take a daring chance. Ragnar asks Bjorn for a favor that could change the course of Viking history.