Ubbe reunites with an old friend but must pass judgment on a killer. The armies of Alfred and Ivar clash as each leader looks to his god for strength.

Ubbe and the settlers open relations with the indigenous people of the new land. Ivar’s strategy lures Alfred’s forces into a devastating battle.

King Alfred falls ill as the Viking army seizes the high ground. Ingrid curses Erik. Ubbe and his people find a new world — but they’re not alone.

Ivar and Hvitserk lead King Harald’s army to England, where King Alfred of Wessex abandons his royal villa and marches to meet the sons of Ragnar.

Ubbe and his followers languish on the open sea. Ivar and Hvitserk receive a frosty reception in Kattegat, until a restless Ivar has a revelation.

Factions in Greenland spill blood, driving Ubbe’s company away. Troops under Ivar and Dir seize Kiev for Prince Igor. Gunnhild makes a fateful choice.

As his enemies scheme for power, Harald prepares for his coronation and chooses a queen. Ubbe’s party reaches shore — but not the one they’re seeking.