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.

'Vikings' is acclaimed for its engaging storytelling, strong character arcs, and epic battle sequences. The series is celebrated for its immersive world, historical detail, and standout performances, especially Travis Fimmel as Ragnar Lothbrok. However, some criticize historical inaccuracies, a decline in quality post-Ragnar, and pacing issues in later seasons. The shift towards soap opera elements and introduction of less compelling characters also draw criticism. Despite these flaws, many find the series enjoyable, particularly its earlier seasons.