Treasure is found in an ancient tomb under Camelot. Gaius is worried that the treasure belongs to Cornelius Sigan, an evil sorcerer and wants the King to have the tomb resealed. A new servant called Cedric attempts to turn Arthur against Merlin. Merlin finds out that Cedric is up to and finds himself being forced to turn to The Great Dragon.
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.
Merlin - The Curse of Cornelius Sigan Synopsis and Schedule