The Legend of Prince Valiant After his castle is taken over; Valiant, Prince of Thule, has a dream in which King Arthur calls him to Camelot. Valiant heeds the advice of the dream and sets out on a quest to find the famed kingdom. Along the way he meets two new friends, Arn (a peasant) and Rowanne (the blacksmith's daughter), who join him on his quest to become Knights of The Round Table. After arriving in Camelot the plot focuses on the three friends' lives as they strive to become knights.