The Rise of Arthur Pendragon
Legend tells that Arthur will rise again when Camelot has need of him the most. Two centuries have past, and a new threat awakens in the kingdom, one large enough to make the once and future king return again, taking the form of a young boy, Fillmore. A strong army threatens to take Camelot controlled by a powerful, mysterious sorcerer in Albion. Also, Fillmore finds a mysterious old man by the name of Merlin approaching him one day stating that he is the only one who could stop them: he was Arthur risen again. Fillmore will need to rally together the people of Camelot and become a beacon of hope for the people in their war against the Roshili.
**** HEADS UP GUYS! This takes place after the show has ended, so if you want to avoid spoilers you should probably finish the last episode.