Merlin - Season 4 - Eps 13: The Sword in the Stone (2)
Morgana and Helios have successfully captured Camelot, and Merlin and Arthur are outlaws on the run, in the last episode in this season of Merlin. Trapped in Ealdor with a ruthless army closing in, their situation becomes desperate. Arthur must take control before Camelot is lost forever… But faced with Agravaine’s betrayal and the strength of Morgana’s force, the young King has lost his conviction. Only Merlin can restore his faith, and only an extraordinary act can prove to the King that he was born to rule. Will the young warlock convince Arthur before his dreams of Albion fall to pieces?
About Merlin

Title: Merlin
First Air Date: 2008-09-20
Last Air Date: 2012-12-24
Status: Ended
Rating: 7.8/10 (from 1001 votes)
Language: EN
Seasons: 5
Total Episodes: 65
Network: BBC One
Genres: Action & Adventure, Drama, Sci-Fi & Fantasy
Production Companies: Shine TV
Synopsis
The unlikely friendship between Merlin, a young man gifted with extraordinary magical powers, and Prince Arthur, heir to the crown of Camelot.
Cast

Colin Morgan
Merlin

Angel Coulby
Gwen

Bradley James
Arturo Pendragon

Katie McGrath
Morgana

Richard Wilson
Gaius

John Hurt
Kilgharrah (voice)

Tom Hopper
Percival

Rupert Young
Leon