: Upon hearing of Bebbanburg's weakened state from his scouts Finan and Osferth, Uhtred seeks King Edward's aid. Edward refuses to commit troops, forcing Uhtred to devise a stealthier plan involving a pilgrimage to a holy relic—the heart of St. Oswald.
: In East Anglia, Cnut and Brida plot an invasion of Mercia and Wessex. To lure the Saxons out, they spread misinformation via Haesten that Cnut has left for Ireland.
: The premiere confirms their romantic relationship as they spend time together at Uhtred's estate in Cookham. Their bond is tested by their competing duties to Mercia and Uhtred's personal quest. The Last Kingdom Season 4 Episode 01 (S04E01)
: Uhtred is reunited with his son, Young Uhtred (played by Finn Elliot), now a pious young cleric who clashes with his father's pagan ways. Character Dynamics & New Entrants
: New players Eardwulf (commander of the Mercian guard) and his sister Eadith emerge. Eadith uses her influence over Æthelred for political gain as they plot to conquer "undefended" Danish lands. : Upon hearing of Bebbanburg's weakened state from
Critics noted the episode's "busy, stage-setting" nature, praised Ian Hart’s performance as Father Beocca, and highlighted the emotional weight of Uhtred finally returning to his birthright after three seasons of delay. The Last Kingdom Season 4 Episode 1 Review: To Bebbanburg!
: The episode opens with Aelfric , Uhtred's uncle, defending Bebbanburg from a brutal Scottish attack. Although he survives, he loses over half his men, creating a rare window of vulnerability. : In East Anglia, Cnut and Brida plot
The Season 4 premiere of The Last Kingdom (S04E01), titled "Episode 1," serves as a high-stakes "trip back through its storied past" while setting the stage for a new era in England. The episode centers on Uhtred's return to his ultimate goal: reclaiming his ancestral home of Bebbanburg , Northumbria.