5,529 votes


BBC One 2008

Merlin is a drama series based around the legends of the mythical wizard and his relationship with Prince Arthur. Set in the early days of their relationship, it shows the development of each in his respective field, finding his way on the path to future greatness. Humour, danger and excitement abound, accompanied by mythical creatures, magic and of course much medieval swashbuckling.

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The 10 Best Episodes of Merlin

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 #1 Best episode of Merlin from 313 votes.

Merlin - S3E13

#2 - The Coming of Arthur (2)


Season 3 - Episode 13

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 #2 Best episode of Merlin from 284 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 #3 Best episode of Merlin from 427 votes.

Merlin - S2E13

#4 - The Last Dragonlord (2)


Season 2 - Episode 13

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 #4 Best episode of Merlin from 285 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 #5 Best episode of Merlin from 380 votes.

Merlin - S4E12

#6 - The Sword in the Stone (1)


Season 4 - Episode 12

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 #6 Best episode of Merlin from 313 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 #7 Best episode of Merlin from 298 votes.

Merlin - S4E6

#8 - A Servant of Two Masters


Season 4 - Episode 6

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 Best episode of Merlin from 304 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 #9 Best episode of Merlin from 309 votes.

Merlin - S4E4

#10 - Aithusa


Season 4 - Episode 4

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

The episode was rated #10 Best episode of Merlin from 314 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 #1 Best episode of Merlin from 349 votes.

Merlin - S3E12
#12 - The Coming of Arthur (1)
Season 3 - Episode 12

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 #2 Best episode of Merlin from 275 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 #3 Best episode of Merlin from 325 votes.

Merlin - S3E1
#14 - The Tears of Uther Pendragon (1)
Season 3 - Episode 1

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 #4 Best episode of Merlin from 278 votes.

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 #5 Best episode of Merlin from 292 votes.

Merlin - S5E9
#16 - With All My Heart
Season 5 - Episode 9

Merlin knows he must act fast before Morgana’s twisted control over Gwen gets further out of hand. But only the most powerful magic can save the Queen and this will not be easy, even for Merlin. As the High Priestess tightens her grip on Camelot, one thing is clear - she will not give up her puppet without a fight.

The episode was rated #6 Best episode of Merlin from 357 votes.

Merlin - S3E8
#17 - The Eye of the Phoenix
Season 3 - Episode 8

Arthur embarks alone on a quest to prove himself worthy of the Camelot throne by retrieving the Golden Trident from the Fisher King. With the Prince beyond the protection of the citadel, Morgana takes the opportunity to use her dark magic. She gives him a precious bracelet that contains a Phoenix Eye, insisting that he wears it at all times for protection. However, the magical jewel takes away Arthur's life force and he is left defenceless in the Fisher King's perilous realm. With the help of Gwaine, will Merlin be able to reach Arthur in time and fulfil his own quest to protect the future king of Camelot?

The episode was rated #7 Best episode of Merlin from 268 votes.

Merlin - S5E2
#18 - Arthur's Bane (2)
Season 5 - Episode 2

As dawn breaks across the icy tundra, Merlin and Arthur are close to exhaustion. With each tortured step, the fortress of Ismere looms ever nearer and Merlin's fear intensifies. What game is Mordred playing? And what powerful secrets are Morgana and the druid Ruadan (Liam Cunningham) searching for amongst its twisted catacombs? It seems like this time, not even Merlin can stop Arthur from walking right into the lion's den… For in this bleak and transient wilderness, only one thing is certain: the great trial for Albion has finally begun.

The episode was rated #8 Best episode of Merlin from 345 votes.

Merlin - S4E3
#19 - The Wicked Day
Season 4 - Episode 3

The mighty citadel is buzzing in anticipation of the Prince's birthday celebrations, as the fantasy drama continues. But Arthur's old adversary, Odin, promises to ensure this is one party Camelot will never forget - for among the assembling guests lurks a deadly assassin set to strike. As the dust settles, Camelot is left devastated. Just how far is Merlin prepared to go to put things right; would he really risk everything and reveal his secret?

The episode was rated #9 Best episode of Merlin from 309 votes.

Merlin - S1E11
#20 - The Labyrinth of Gedref
Season 1 - Episode 11

Arthur brings a curse upon Camelot. Eager to help his people, he asks Anhora for advice. But is he brave enough to face the challenges ahead?

The episode was rated #10 Best episode of Merlin from 325 votes.

Last updated: apr 11, 2021



Thank you Merlin.


This is a decent show...not really good but cheesy good. There are some parts that are fantastic and some parts that are subpar so it evens out to a decent show. Anthony Stewart Head as Uther is probably the best part of this show, he is a rock solid actor. This show had so much potential with having them the same age, they could have done SOOOO MUCH but they chose to ignore pretty much all of that potential. With that said, the series finale is INCREDIBLY AWFUL so it tainted the show for me so I would suggest just skip the last episode.


I agree with the other comments about the series finale. Skip it if you want to end the show on a good note. I LOVED this show because of the two leads. Not every episode was amazing, but there were real gems in there. They could have really done something different with the ending; it left me with a sour taste in my mouth... That said, I still recommend the rest of the series. It's one of my all-time favourites.


So painful to say goodbye. What an amazing series! Oh great. I'm crying again.


super amazing!


when i first started watching merlin i was just curious but now i cant wait till next season recommend this to anyone who would like to have another view at how king arthur became the man he was (in this tale ofcourse :) )


The weird thing about this show is that it is so awfully written, yet the humor is amazing.


@rottnkorpse .. I thought the whole series was pretty awesome, and I loved the way year by year it grew, as the characters grew! Everything about it was excellent! However, I don't agree about the last episode. Yes, I was disappointed, but only because I knew it was over! It was pretty much the way I would expect an incredible series like "Merlin" to end! I really wish it wasn't over!!


The early seasons were pretty great but it got progressively worse until I gave up, halfway through season 5. I hear I didn't miss much. Loved the dynamic between Arthur and Merlin though and am angry that they didn't do more with this show. If I had stopped at season 1 or 2 I would have probably given this an 8.


Series is decent but plots keep repeating. Everytime there's another infiltrator.

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