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.

The election for Kattegat’s new ruler is held, but a surprise visitor disrupts the proceedings. Ivar puts his plan to overthrow Oleg into action.

Ubbe persuades the settlers in Iceland to embark on a voyage of exploration. The defeat of the Rus creates power vacuums in both Kattegat and Kiev.

Celebrations are cut short in the aftermath of the battle at York; Ragnar Lothbrok’s sons are pitted against each other as tensions reach an all-time high, and each is forced…