Merlin · Season 4, Episode 1
Merlin Season 4 Episode 1: The Darkest Hour: Part One
About Merlin: Fantasy drama based on the legend of King Arthur and Merlin.
More from Season 4
Season 4, Episode 2: The Darkest Hour: Part Two Season 4, Episode 3: The Wicked Day Season 4, Episode 4: Aithusa Season 4, Episode 5: His Father's Son Season 4, Episode 6: A Servant of Two Masters Season 4, Episode 7: The Secret Sharer Season 4, Episode 8: Lamia Season 4, Episode 9: Lancelot Du Lac Season 4, Episode 10: A Herald of the New Age Season 4, Episode 11: The Hunter's Heart Season 4, Episode 12: The Sword in the Stone: Part One Season 4, Episode 13: The Sword in the Stone: Part Two