When young warlock Merlin arrives at Camelot, sent by his mother to start a new life, he finds himself in a place where magic is punishable by death. Yet when he finds the Great Dragon, Merlin's destiny becomes clear- he must use his magic to protect Arthur, son of Uther and future King.
Merlin is a young warlock who arrives in the kingdom of Camelot after his mother arranges for him to stay with the court physician, Gaius. He discovers that the king, Uther Pendragon, has outlawed magic and imprisoned the last great dragon deep under the kingdom.
The dragon tells Merlin that he plays an important role: to protect Uther's son, Arthur, who will bring forth a great kingdom. When Merlin meets Arthur, he believes that he is arrogant and Arthur, likewise, views Merlin as subservient. Merlin must keep his magic secret or face being executed by Uther.