Merlin - Series 1 - The Labyrinth of Gedref

Fantasy romp based on the legend of King Arthur. Arthur kills a unicorn, bringing a curse down upon all of Camelot. With the fabled city fast running out of both food and water, he is desperate to make amends and help his people. But to do so, he must listen to the mysterious Anhora, and he does not like what he hears. Will Arthur take Anhora seriously before it is too late? And if so, is he brave enough to face the challenges that are thrown at him?