The Vikings head back to England to see what other treasures this new world has to offer. Ragnar and his crew sail out with Earl Haraldson's permission....and also with Earl Haraldson's spy. After bloodshed on the beach, the Vikings choose the Sabbath to invade the town of Hexam and unleash a flood of violence and panic. In the midst of the terror, Ragnar and Lagertha (Katheryn Winnick) discover that there are consequences for every action and Earl Haraldson is always watching.