Merlin and Arthur are sent on a dangerous mission to capture the Cup of Life, a powerful magical artifact that carries the gift of immortality.
But before they can retrieve the Cup, they are captured by unscrupulous slave trader, Jarl. A trusted friend comes to their rescue and they escape, but with Jarl's help the cup falls into Morgause's hands. With an immortal army at their disposal, will Morgause and Morgana topple Uther once and for all?
Starring: Colin Morgan (Merlin), Angel Coulby (Gwen), Bradley James (Arthur Pendragon), Katie McGrath (Evil Morgana), Anthony Head (Uther Pendragon), Richard Wilson (Gaius), John Hurt (Voice of the Great Dragon)
Guest Starring: Emilia Fox (Morgause), Eoin Macken (Gwaine), Tom Ellis (Cenred), Adetomiwa Edun (Elyan), Rupert Young (Sir Leon), Michael Cronin (Geoffrey of Monmouth), Ralph Ineson (Jarl), Trevor Sellers (Iseldir), Grahame Fox (Rider), Matthew Crawford (Bandit), Raul Griffiths (Druid Boy)
Written by
Directed by Jeremy Webb
Trivia: This episode marks the return of Iseldir, the Druid chieftain last seen in Season 1 episode The Beginning of the End.
Source: farfarawaysite