In the kingdom of Camelot, magic has been banned by the ruthless tyrant, Uther Pendragon. Merlin, who was born with extraordinary magical powers, is taken as an apprentice to the court physician Gaius and as manservant to the headstrong Prince Arthur. However, with the practice of magic punishable by death, Merlin must take care when and where he uses his talents.
The Great Dragon, who lies imprisoned under the castle, informs Merlin that his gift has a purpose - to aid him in his destiny to protect Prince Arthur, who will one day lead a great and just kingdom. But Merlin soon discovers that following his destiny is not always an easy task.