The final four episodes of the first season conclude the first major arc of the series, focusing on the aftermath of the Siege of London and the rising threat to Kattegat.

The season finale involves the invasion of Kattegat by Olaf and Kåre's forces.

Sweyn Forkbeard takes decisive action to secure the English throne for Emma. Watch Vikings: Valhalla | Netflix Official Site

King Canute solidifies his power in England while a new antagonist, Kåre, revisits a childhood trauma.

Leif is hailed as a hero but begins to privately question his faith. Freydis joins a sacred order in Kattegat.

Olaf forms a pact with Kåre as Kattegat prepares its defenses.