Vikings: Valhalla

Plotting to avenge a massacre in England, Viking armies converge in Kattegat -- but siblings Leif and Freydis exact a different kind of retribution.

To save the life of Freydis, Leif agrees to join Canute and Harald's siege of London; Queen Emma dispatches stepson Edmund to secure an ally's help.

On a pilgrimage, Freydis and her party are savagely attacked; Harald and Leif seek a route through the marshes near London as Edmund is crowned king.

Leif proposes an audacious assault on London, one that Emma and Godwin fear brash and headstrong boy-king Edmund will be too reckless to defeat.

Schemes, betrayals and politics rule the day as a new monarch takes the throne of England; Leif is hailed as a hero but secretly questions his faith.

Freydis returns to Kattegat and joins a sacred order; Canute solidifies his power in England; Kåre revisits the holy site of a childhood trauma.