Merlin

10 Best Episodes of Merlin

The unlikely friendship between Merlin, a young man gifted with extraordinary magical powers, and Prince Arthur, heir to the crown of Camelot.

Written by Sophie and last updated on feb 04, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

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Merlin - S4E7

#15 - The Secret Sharer (Season 4 - Episode 7)

Morgana joins forces with enigmatic wizard Alator to uncover a secret that could change the course of destiny, as the magical drama continues. With allies on both sides of the castle walls, can anyone stop her before Merlin's greatest secret is revealed?

The episode was rated 8.14 from 292 votes.

Merlin - S3E1

#14 - The Tears of Uther Pendragon (1) (Season 3 - Episode 1)

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A year after her disappearance and when almost all hope is lost, Morgana returns to Camelot. While Merlin is afraid she might remember the circumstances of her disappearance and give him away in front of the king, a delighted Uther announces a banquet to celebrate. However, soon afterwards evil magic starts to take hold of the king's mind, putting the safety of Camelot at risk as he is consumed with hallucinations and enemies reach his door. Merlin suspects Morgana is behind the enchantment but his search for the truth puts his life in peril while Arthur is forced to take control and face new foes on his own. Will they succeed to rescue the king and Camelot from destruction?

The episode was rated 8.14 from 278 votes.

Merlin - S1E13

#13 - Le Morte d'Arthur (Season 1 - Episode 13)

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 magic, Uther refuses to listen and sends out his knights to kill it. Arthur is fatally wounded and Merlin must go to the Isle of the Blessed to save him. But will he be able to pay the price?

The episode was rated 8.16 from 325 votes.

Merlin - S3E12

#12 - The Coming of Arthur (1) (Season 3 - Episode 12)

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Arthur and Merlin embark on a dangerous mission to capture the Cup of Life, a powerful magical artifact that carries the gift of immortality. However, before they are able to retrieve the Cup they fall prey to Jarl, an unscrupulous slave trader. They manage to escape when a trusted friend comes to their rescue but with Jarl's help, the Cup of Life ends up in Morgause's hands. Now that the dreadful sisters count on an immortal army at their disposal, will Morgause and Morgana overthrow Uther once and for all?

The episode was rated 8.19 from 275 votes.

Merlin - S5E11

#11 - The Drawing of the Dark (Season 5 - Episode 11)

Mordred finds himself torn between loyalty and love, but little does he realise that the path he chooses will shape Camelot's destiny. As the drums of war beat ever louder, a desperate Merlin feels trapped by the cruel circle of fate - is he powerless to stop his dreams of Albion from crumbling to dust?

The episode was rated 8.19 from 349 votes.

Merlin - S4E4

#10 - Aithusa (Season 4 - Episode 4)

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A mysterious visitor arrives in Camelot seeking a very special prize: a dragon's egg.

The episode was rated 8.21 from 314 votes.

Merlin - S4E1

#9 - The Darkest Hour (1) (Season 4 - Episode 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.

The episode was rated 8.29 from 309 votes.

Merlin - S4E6

#8 - A Servant of Two Masters (Season 4 - Episode 6)

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Merlin becomes a deadly weapon in Morgana's fight for supremacy when he falls into her hands. By recurring to ancient magic, she manages to turn friend against friend and creates the perfect assassin out of the young sorcerer which puts an oblivious King Arthur in great danger. Will anyone notice Merlin's unusual behaviour before he is able to do any serious harm to the King?

The episode was rated 8.31 from 304 votes.

Merlin - S4E2

#7 - The Darkest Hour (2) (Season 4 - Episode 2)

The kingdom is on the brink of collapse and Morgana poised to strike, in the final part of this opening episode of the fantasy drama. As Lancelot races back to Camelot with the dying Merlin, Arthur must continue on his mission to vanquish the Dorocha without them. Though the Knights know their journey to the Isle of the Blessed is fraught with danger, none could anticipate the sacrifice Arthur intends to make there. Friendship and loyalty are tested to the limit, but in the end, it's the power of love that changes all their lives for ever.

The episode was rated 8.33 from 298 votes.

Merlin - S4E12

#6 - The Sword in the Stone (1) (Season 4 - Episode 12)

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Morgana is now the head of a vast Southron army and a deadly net is closing around Camelot. After the sorceress strikes everyone is forced to run for their lives including Arthur. It is down to Merlin to try and save Arthur from Morgana's clutches.

The episode was rated 8.38 from 313 votes.

Merlin - S5E12

#5 - The Diamond of the Day (1) (Season 5 - Episode 12)

High in the mountains, a great horde gathers; Morgana prepares for war with a vengeful Mordred at her side. Merlin feels the weight of his destiny like never before as the ancient prophecies play out with terrifying accuracy. But before he can save his beloved Camelot, he must save himself. For it is not just the kingdom Morgana wishes to destroy – it is also Emrys.

The episode was rated 8.43 from 380 votes.

Merlin - S2E13

#4 - The Last Dragonlord (2) (Season 2 - Episode 13)

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The Great Dragon is finally free. Full of rage, he attacks Camelot with pitiless intensity. The castle is crumbling and Arthur's men cannot hold out much longer but only a Dragonlord can kill a dragon and Uther wiped them all out years ago. Or did he? Gaius admits one such man could still be alive and in hiding. The last Dragonlord is the key to Merlin's own past as well as the future of Camelot, but will Arthur and Merlin find Balinor in time to save the kingdom?

The episode was rated 8.45 from 285 votes.

Merlin - S5E13

#3 - The Diamond of the Day (2) (Season 5 - Episode 13)

And so it seems the Prophets did not lie. As the great battle rages on Camlann's mighty plain, Merlin faces his moment of destiny. Can he find the strength to save the man he made a King; the Camelot they fought to build; and the brotherhood they shared?

The episode was rated 8.46 from 427 votes.

Merlin - S3E13

#2 - The Coming of Arthur (2) (Season 3 - Episode 13)

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Will Arthur be able to save Camelot from the evil Morgana? Morgana, newly crowned as Queen of Camelot, begins a reign of terrible evil over the innocent citizens of the kingdom. Counting on Morgause and her immortal army at her command all hope seems lost for Uther, who is forced to witness how his kingdom crumble under the unimaginable cruelty of his own daughter. Meanwhile, on the outskirts of Camelot, Arthur recovers his strength and plans a counter attack with the help of a few loyals at his side: Gwaine, Lancelot, Elyan and Percival. However, Merlin is aware that not even a skilful warrior like Arthur can defeat an immortal foe without magic. Will he be able to reclaim the great sword Excalibur from the Lake of Avalon in time to save the lives of those he cares the most about?

The episode was rated 8.53 from 284 votes.

Merlin - S4E13

#1 - The Sword in the Stone (2) (Season 4 - Episode 13)

Morgana and Helios have successfully captured Camelot, and Merlin and Arthur are outlaws on the run, in the last episode in this season of Merlin. Trapped in Ealdor with a ruthless army closing in, their situation becomes desperate. Arthur must take control before Camelot is lost forever… But faced with Agravaine’s betrayal and the strength of Morgana’s force, the young King has lost his conviction. Only Merlin can restore his faith, and only an extraordinary act can prove to the King that he was born to rule. Will the young warlock convince Arthur before his dreams of Albion fall to pieces?

The episode was rated 8.56 from 313 votes.

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