Full episode spoilers.
Bjorn marries Ingrid with Gunnhild's consent, but Gunnhild struggles privately with the arrangement. His attention turns to the Rus when Erik returns from a clash with foreign scouts carrying their banner. Gunnhild urges Bjorn to seek Harald's help. Erik carries the request to Harald, who initially threatens to execute him. Olaf persuades Harald to listen, and Harald agrees to cooperate if Bjorn comes to him.
Ivar's scouting party finds Hvitserk after his banishment, bringing the brothers together again. Back in Kiev, Hvitserk tells Ivar that he killed Lagertha. Ivar is surprised by the news, having wanted revenge for Aslaug himself. When Ivar asks whether Katia resembles Freydis, Hvitserk says he cannot see the likeness. Their reunion gives Ivar a familiar companion inside Oleg's court, while Oleg prepares his army for Norway.
In Iceland, Ubbe meets Othere, a traveller who speaks of a fertile land far to the west. Othere reveals a Christian past and the name Athelstan, raising Ubbe's suspicions. Torvi reminds Ubbe of their own baptism when he threatens the man. She survives a difficult labour and gives birth to a son. Othere also produces Floki's wedding ring and says Floki lost hope in humanity. The episode closes with Ivar watching the enormous Rus army assemble, making the approaching invasion visible.