Arthur is pressured into an arranged marriage with a visiting Princess, Elena. Merlin's reservations are vindicated when he discovers Elena may not be exactly who she claims to be.
Whilst trying to uncover the dark secret hidden inside her, Merlin learns that Elena's nanny is a Pixie. But who is she working for? And what do they have to gain from this marriage? Can Merlin get to the bottom of this mystery before Arthur makes the biggest mistake of his life? watch
Graham Norton is joined by guests Enrique Iglesias and Jennifer Coolidge watch
Prince Edmund, a.k.a. the Black Adder, constantly schemes to take the crown from his father and brother with the help of Lord Percy and Baldrick. watch