On a hunting trip, Arthur comes face to face with a creature of great power from the old religion. When Gaius informs them that it can only be killed by…

Uther’s past comes back to haunt him as a mysterious Black Knight interrupts Arthur’s coming-of-age celebrations, throwing down his gauntlet and challenging the Knights of Camelot to combat. The Black…

With her sights set firmly on Merlin, Nimueh tricks him into drinking from a poisoned chalice, and he falls dangerously ill. Arthur ventures forth deep into the forest of Balor…

A deadly plague spreads through Camelot. When it seems that sorcery can be the only possible explanation, Merlin and Gaius race to find a cure, while Gwen is arrested and…