Ragnar's warband returns in triumph to Kattegat, where the Earl confiscates the plundered riches except for one piece per man. Ragnar picks the distraught Athelstan and returns home. The monk's faith and his vow of chastity perplex Ragnar, but Ragnar gathers useful intelligence about the kingdom of Northumbria. On that basis, Earl Haraldson authorizes another raid on England. Now accompanied by Lagertha and the Earl's trustee Knut, Ragnar re-embarks post-haste, leaving Athelstan to mind the farm and the children. As the Vikings set foot on English soil, they are met by the local sheriff and a handful of armsmen, who invite the newly landed "traders" to meet King Aelle. Ragnar agrees, but his other warriors' distrust incites a battle, in which the Northumbrians are slaughtered.
Vikings follows the adventures of Ragnar Lothbrok the greatest hero of his age. The series tells the sagas of Ragnar's band of Viking brothers and his family, as he rises to become King of the Viking tribes.
As well as being a fearless warrior, Ragnar embodies the Norse traditions of devotion to the gods, legend has it that he was a direct descendant of Odin, the god of war and warriors.