Merlin Series 4Episodes Available now

The Sword in the Stone: Part Two

13/13With Camelot lost, Merlin goes to great lengths to restore Arthur's self-belief.

12/13Arthur and Merlin must run for their lives as a merciless Morgana attacks Camelot.

11/13Arthur's plans for the future are thrown into disarray by the return of Gwen.

10/13The discovery of a shrine in the woods unearths a haunting secret from Camelot's past.

9/13Camelot rejoices at the return of a long-lost friend: Sir Lancelot.

8/13Merlin finds himself fighting for survival against a deadly unseen enemy.

7/13Morgana joins forces with the enigmatic wizard Alator.

6/13A desperate Morgana finds the unlikeliest of assassins: Merlin.

5/13For the first time since his coronation, Arthur finds out what it's really like to be King

4/13A mysterious visitor arrives in Camelot seeking a very special prize: a dragon's egg.