At the behest of King Horik, Ragnar assembles a small party to travel to Gotaland (modern day Sweden) to resolve a land dispute with the area's leader, Jarl Borg. Ragnar's renown precedes him and Jarl Borg is intrigued - has he found a new ally or is Ragnar just a puppet of the king? Meanwhile in Kattegat, with a plague taking its toll on the village, the people look to Lagertha to help appease the gods.
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.