Arthur is challenged to a duel by a mysterious warrior. Arthur and Merlin then find themselves on a quest on Morgause's behalf. A dark secret is discovered by Arthur that could change Camelot forever.
Watch on DVD or Blu-ray starting November 25th, 2008 - Buy Merlin and the War of the Dragons DVD ...
The BBC's big autumn family adventure series Merlin continues to improve, with "The Mark of Nimueh" the best instalment yet.
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