- Writers: Michael Hirst
- Stars: Alexander Ludwig , Alyssa Sutherland , Cathal O'Hallin , Clive Standen , Cormac Melia , Donal Logue , Edvin Endre , Gaia Weiss , George Blagden , Gustaf Skarsgård , Jefferson Hall , Jessalyn Gilsig , John Kavanagh , Katheryn Winnick , Linus Roache , Maude Hirst , Moe Dunford , Travis Fimmel
The vikings are recovering from their wounds after the failed attack on Paris. Ragnar in particular is suffering badly from his wounds. In his dreams, he sees his old friend Athelstan. Led by Rollo, Lagertha and Bjorn the vikings stage a second attack on the city. This time they focus on gaining access over the bridge but are again repelled. The citizens of Parisians are suffering however. The plague has set in and there is a food shortage. Emperor Charles decides to meet with Ragnar to learn what he wants but is surprised at the viking leader's request. In Kattegat meanwhile, Aslaug has to decide what to do with a wandering Christian missionary.