Merlin: Season 2, Episode 1

2 - 1: The Curse of Cornelius Sigan

A new servant named Cedric tries to get Merlin's job of Arthur's manservant, but Merlin discovers his real reason is to obtain a jewel from the newly-found tomb of Cornelius Sigan, the most powerful sorcerer of all time, who once vowed to return to destroy Camelot.