Merlin: The Curse of Cornelius Sigan

SYNOPSIS

Colin Morgan returns as the talented young wizard to protect Camelot from a fresh batch of foes. When slippery servant Cedric starts causing trouble, Merlin discovers the newcomer is a conman who hopes to get his hands on a precious jewel recently unearthed from a tomb. But without the support of Arthur, Merlin has to find help from the creature he swore never to trust again - the Great Dragon. Mackenzie Crook guest stars, with Bradley James.