The battle of Bardon Pass continues as Arthur tries to defend it alone. Meanwhile Morgan continues with her plan to take the throne while Arthur is away.

Cast: Joseph Fiennes, Jamie Campbell Bower, Tamsin Egerton, Claire Forlani, Peter Mooney, Philip Winchester, Eva Green, Lara Jean Chorostecki, Sinéad Cusack, Tyler Kennington, Darryl Kinsella, Diarmaid Murtagh, Sebastian Spence, Clive Standen