
Arthur is banished by his father, High King Uther, after rescuing a dying boy...
Merlin discovers a sudden and tragic loss, prompting him to track down Arthur and plead with him to return to Britain. However, their reunion is short-lived as Gundleus launches a surprise attack on Avalon, plunging the land into chaos.
At the present time, viewers have the opportunity to enjoy "The Winter King" completely free of charge, though with occasional advertisements, on the following streaming platforms: ITV Player, ITVX.