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There are 52 episodes Merlin season 1, season 2, season 3 and season 4.
Merlin season 1 episode list:
- Season 1, Episode 1 – The Dragon’s Call
- Season 1, Episode 2 – Valiant
- Season 1, Episode 3 – The Mark of Nimueh
- Season 1, Episode 4 – The Poisoned Chalice
- Season 1, Episode 5 – Lancelot
- Season 1, Episode 6 – A Remedy to Cure All Ills
- Season 1, Episode 7 – The Gates of Avalon
- Season 1, Episode 8 – The Beginning of the End
- Season 1, Episode 9 – Excalibur
- Season 1, Episode 10 – The Moment of Truth
- Season 1, Episode 11 – The Labyrinth of Gedref
- Season 1, Episode 12 – To Kill the King
- Season 1, Episode 13 – Le Morte d’Arthur
Merlin season 2 episode list:
- Season 2, Episode 1 – The Curse of Cornelius Sigan
- Season 2, Episode 2 – The Once and Future Queen
- Season 2, Episode 3 – The Nightmare Begins
- Season 2, Episode 4 – Lancelot and Guinevere
- Season 2, Episode 5 – Beauty and the Beast
- Season 2, Episode 6 – Beauty and the Beast II
- Season 2, Episode 7 – The Witchfinder
- Season 2, Episode 8 – The Sins of the Father
- Season 2, Episode 9 – The Lady of the Lake
- Season 2, Episode 10 – Sweet Dreams
- Season 2, Episode 11 – The Witch’s Quickening
- Season 2, Episode 12 – The Fires of Idirsholas
- Season 2, Episode 13 – The Last Dragonlord
Merlin season 3 episode list:
- Season 3, Episode 1 – The Tears of Uther Pendragon
- Season 3, Episode 2 – The Tears of Uther Pendragon: Part Two
- Season 3, Episode 3 – Goblin’s Gold
- Season 3, Episode 4 – Gwaine
- Season 3, Episode 5 – The Crystal Cave
- Season 3, Episode 6 – The Changeling
- Season 3, Episode 7 – The Castle of Fyrien
- Season 3, Episode 8 – The Eye of the Phoenix
- Season 3, Episode 9 – Love in the Time of Dragons
- Season 3, Episode 10 – Queen of Hearts
- Season 3, Episode 11 – The Sorcerer’s Shadow
- Season 3, Episode 12 – The Coming of Arthur: Part One
- Season 3, Episode 13 – The Coming of Arthur: Part Two
Merlin season 4 episode list:
- Season 4, Episode 1 – The Darkest Hour
- 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
Merlin Season 5
Filming for Merlin series 5 began early in March 2012. Few details have arose about the oncoming fifth series, where apparently, the series will be set many years later. The show will see the return of Mordred, but older, played by Alexander Vlahos.
