Lagertha and Athelstan help to establish the Viking settlement in Wessex. Harbard, a mysterious wanderer, arrives in Kattegat, realizing the forewarned dreams of Aslaug, Siggy and Helga.
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.