S1, E4: The Vikings head back to England to see what other treasures this new world has to offer. This go round Ragnar (Travis Fimmel) and his crew sail with Earl Haraldson's permission...and also with his spy aboard. After bloodshed on the beach, the Vikings choose the Sabbath to invade the town of Hexam and unleash a flood of violence. In the midst of the terror, Ragnar and Lagertha (Katheryn Winnick) discover that there are consequences for every action and that Earl Haraldson is always watching.