A conflict develops between a troubled Vietnam veteran and the sister he lives with when she becomes involved romantically with the army buddy who reminds him of the tragic battle they both survived.

Season two brings crises of faith, of power, of relationships. Brothers rise up against one another. Loyalties shift from friend to foe, and unlikely alliances are formed in the name of supremacy. Ragnar’s indiscretions threaten his marriage to Lagertha, tearing him and his beloved son apart. Plots are hatched, scores are settled, blood is spilled… all under the watchful eyes of the gods.

Introducing the extraordinarily complex and violent world of the Norsemen, The History Channel's first scripted series races the gripping sagas of historical hero Ragnar Lothbrok. As claimed direct descendent of Odin, god of war and warriors, Lothbrok's mystical nature and devotion to the gods feeds his stealthy maneuvers and determination to become King of the Vikings.

Desperate for an online following, a rideshare driver has figured out a deadly plan to go viral and he will stop at nothing to get his five minutes of fame.