Episode Name: The Sword In The Stone Part 2
Air date: 12/24/2011
Summary: After Morgana and Helios’ successful alliance, Camelot is once again in the sorceress’ hands while Arthur and Merlin become outlaws on the run. They find themselves in a desperate situation, trapped in Ealdor and with a ruthless army closing in. Arthur must assume control before Camelot is lost forever but his conviction is lost in the face of Agravaine’s betrayal and the strength of Morgana’s force. Once again, it comes down to Merlin to restore Arthur’s faith with an extraordinary act that will prove to the King that he was born to rule. Will the young warlock be able to convince Arthur before all dreams of Albion fall to pieces?      

Watch or download Merlin – Season 4 Episode 13 – The Sword In The Stone Part 2 at below links.