Merlin: Beauty and the Beast (Part 1 of 2)

Part one of two. Uther becomes infatuated with the beautiful Lady Catrina, a newcomer to Camelot. However, Merlin realises she is really a troll hiding her true identity behind magic. As the young wizard fights to prove to the disbelieving Arthur that the woman is a monster, it becomes clear she is motivated by more than the prospect of winning the king's heart. Fantasy drama, guest starring Sarah Parish and Adam Godley