> Order the complete Series 5 DVD boxset on Amazon.

‘The Diamond of the Day (Part One)’ airs at 7.55pm on Saturday 22 December on BBC One and high in the mountains, a great horde gathers; Morgana prepares for war with a vengeful Mordred at her side.

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

> Order the complete Series 5 DVD boxset on Amazon.

Watch the Series 5 trailer…