The episode airs at 8.15pm on Saturday 5th November on BBC One and sees Merlin become a deadly weapon in Morgana’s fight for supremacy when falls into her hands. Will anyone notice Merlin’s unusual behaviour before he does the King some serious harm?

> Order the Series 4 Volume 1 DVD on Amazon.

In this clip, Arthur wakes to see an unfamiliar figure at the foot of his bed. As he gazes on in bewilderment, the King is greeted by his new man-servant, George…

Are you looking forward to the episode? Let us know below…