5 Season
65 Episode
Merlin - Season 4 Episode 1 The Darkest Hour (1)
Evil sorceress Morgana summons mighty gatekeeper the Cailleach, who opens a door to another world from which hellish creatures pour forth. As Arthur and his loyal knights take up arms, Merlin discovers the only thing that will stop them is an unimaginable sacrifice.
- Country : United Kingdom
- Genre : Action & Adventure, Drama, Sci-Fi & Fantasy
- Director : Julian Jones, Jake Michie, Johnny Capps, Julian Murphy
- Cast : Colin Morgan, Angel Coulby, Bradley James, Katie McGrath, Richard Wilson, John Hurt
