The final season finds Bjorn now the king of Kattegat, while Ivar is a fugitive in Russia and Lagertha plans a peaceful retirement to a country farm.

Season five begins with Ivar the Boneless asserting his leadership over the Great Heathen Army, while Lagertha reigns as Queen of Kattegat. Ivar’s murder of his brother Sigurd sets the stage for vicious battles to come as Ragnar’s sons plot their next moves after avenging their father’s death. Bjorn follows his destiny into the Mediterranean Sea and Floki who is suffering from the loss of his wife Helga, takes to the seas submitting himself to the will of the Gods. This season is full of startling alliances and unbelievable betrayals as the Vikings fight to rule the world.

It is the summer of 1941 and the Finnish army has been mobilized along the border with Russia. A platoon led by Lt. Eero Perkola is waiting for orders to go on the offensive. The platoon receives orders for a recon mission through the wilderness around the Lieksa lake to search for possible Russian defensive positions.