TV series
Before Britain, there was Arthur.
Bastard son Arthur returns to the land he's been banished from to find a kingdom in chaos. Seeking the aid of his oldest confidants, Arthur aims to right Britain's path as he faces the most unexpected of obstacles.
Streaming, rental and purchase options
Checked Oct 31, 2026
The Winter King is available to stream on MGM+, MGM+ (Via Amazon Prime), Philo, Prime Video, Spectrum On Demand, and Fubo in United States. Use the direct links below to open the provider.
Bastard son Arthur returns to the land he's been banished from to find a kingdom in chaos. Seeking the aid of his oldest confidants, Arthur aims to right Britain's path as he faces the most unexpected of obstacles.
Choose an episode, then use the watch options above for the show.
Episode 1
High King Uther banishes his son Arthur, who rescues a dying boy named Derfel. Arthur entrusts Derfel to Merlin and Nimue. Years later, Uther has a new heir, but Merlin has a dark vision for the future.
Directed by Otto BathurstWritten by Ed Whitmore, Kate BrookeGuest stars Cy Foxx, Jordan Dark, Sifiso Mazibuko, Lucy Allix, Bryony Morgan, Grace Ackary, Ene Frost, Rob Murphy
Episode 2
An untimely death leads Merlin to locate Arthur and urge him to come back to Britain; chaos ensues when Gundleus assaults Avalon.
Directed by Otto BathurstWritten by Ed Whitmore, Kate BrookeGuest stars Sifiso Mazibuko, Grace Ackary, Ene Frost, Eddie Marsan, Olumide Olorunfemi, Billy Postlethwaite, Daniel Ings, Nathaniel Martello-White
Episode 3
Arthur takes Gundleus prisoner. Nimue struggles with the trauma of her rape and plans to kill Gundleus. Arthur learns that Gundleus' uncle Gorfydd is preparing for war. Nimue tries to pull Derfel into her plans, but Derfel can't betray Arthur.
Directed by Otto BathurstWritten by Ed Whitmore, Kate BrookeGuest stars Olumide Olorunfemi, Daniel Ings, Tatjana Nardone, Andrew Gower, Matt Mella, Charlie Duncan, Gwïon Morris Jones, Oliver Morgan-Thomas
Episode 4
Nimue returns to Avalon, where she is found by Merlin. Derfel and Owain travel to collect taxes from King Cadwys. Gundleus returns to Caer Cadarn.
Directed by Otto BathurstWritten by Ed Whitmore, Kate BrookeGuest stars Olumide Olorunfemi, Billy Postlethwaite, Daniel Ings, Nathaniel Martello-White, Tatjana Nardone, Andrew Gower, Matt Mella, Aneirin Hughes
Episode 5
Derfel feels uncomfortable about the attack on the mine – which Owain is keeping a secret. Nimue is discovered by Merlin who helps heal her. Tristan arrives demanding retribution but Owain denies his guilt.
Directed by Farren BlackburnWritten by Ed Whitmore, Kate BrookeGuest stars Olumide Olorunfemi, Billy Postlethwaite, Daniel Ings, Nathaniel Martello-White, Matt Mella, Aneirin Hughes, Sagar Arya, Faith Delaney
Episode 6
Arthur and the tribe kings enter peace talks. Arthur meets Guinevere, Ceinwyn's lady-in-waiting, while traveling.
Directed by Farren BlackburnGuest stars Jordan Alexandra, Olumide Olorunfemi, Billy Postlethwaite, Daniel Ings, Nathaniel Martello-White, Tatjana Nardone, Andrew Gower, Matt Mella
Episode 7
Arthur and Guinevere meet secretly before Arthur and Ceinwyn are to be married.
Directed by Farren BlackburnGuest stars Jordan Alexandra, Tatjana Nardone, Andrew Gower, Matt Mella, Aneirin Hughes, Emily John
Episode 8
Arthur believes that Bedwin will be able to negotiate peace with Gorfydd; however, when Morgan and Derfel arrive in Powys, they discover a horrific site.
Directed by Farren BlackburnGuest stars Jordan Alexandra, Billy Postlethwaite, Tatjana Nardone, Andrew Gower, Matt Mella, Aneirin Hughes, Charlie Duncan, Gwïon Morris Jones
Episode 9
Gorfydd allies with the Saxons and declares war; Arthur admits he exiled Nimue to the Isle of the Dead.
Directed by Anu MenonGuest stars Jordan Alexandra, Tatjana Nardone, Andrew Gower, Matt Mella, Aneirin Hughes, Charlie Duncan, Sagar Arya, Gwïon Morris Jones
Episode 10
Derfel finds Nimue inside the Isle of the Dead; guilt ridden by the deal he's been forced to make with the Saxons, Arthur vows to fight to save Britain.
Directed by Anu MenonGuest stars Jordan Alexandra, Nathaniel Martello-White, Andrew Gower, Matt Mella, Charlotte Workman, Gabriel Tierney, Angus Salisbury, Craig Parkinson
Episode information updated Nov 14, 2026
Iain De CaesteckerArthur Pendragon
Stuart CampbellDerfel Cadarn
Ellie JamesNimue
Steven ElderBishop Bedwin
Valene KaneMorgan
Simon MerrellsGundleus
Ken NwosuSagramor
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