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The Best Episodes of Merlin

Every episode of Merlin ranked from best to worst. Let's dive into the 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.
Genres:Action & AdventureDramaSci-Fi & Fantasy
Network:BBC One

Best Episodes Summary

"The Coming of Arthur (2)" is the best rated episode of "Merlin". It scored 9.1/10 based on 1172 votes. Directed by Jeremy Webb and written by Julian Jones, it aired on 12/4/2010. This episode scored 0.2 points higher than the second highest rated, "The Last Dragonlord (2)".

  • The Coming of Arthur (2)
    9.1/101,172 votes
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    #1 - The Coming of Arthur (2)

    Season 3 Episode 13 - Aired 12/4/2010

    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?

    Director: Jeremy Webb

    Writer: Julian Jones

  • The Last Dragonlord (2)
    8.9/101,145 votes
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    #2 - The Last Dragonlord (2)

    Season 2 Episode 13 - Aired 12/19/2009

    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?

    Director: Jeremy Webb

    Writer: Julian Jones

  • The Darkest Hour (2)
    8.8/10930 votes
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    #3 - The Darkest Hour (2)

    Season 4 Episode 2 - Aired 10/8/2011

    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.

    Director: Alice Troughton

    Writer: Julian Jones

  • The Sword in the Stone (2)
    8.8/10830 votes
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    #4 - The Sword in the Stone (2)

    Season 4 Episode 13 - Aired 12/24/2011

    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?

    Director: Alice Troughton

    Writer: Julian Jones

  • The Diamond of the Day (1)
    8.8/101,001 votes
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    #5 - The Diamond of the Day (1)

    Season 5 Episode 12 - Aired 12/22/2012

    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.

    Director: Justin Molotnikov

    Writer: Jake Michie

  • The Coming of Arthur (1)
    8.6/10902 votes
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    #6 - The Coming of Arthur (1)

    Season 3 Episode 12 - Aired 11/27/2010

    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?

    Director: Jeremy Webb

    Writer: Jake Michie

  • The Fires of Idirsholas (1)
    8.5/10908 votes
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    #7 - The Fires of Idirsholas (1)

    Season 2 Episode 12 - Aired 12/12/2009

    For the first time in over 300 years the fires of Idirsholas burn and Gaius is worried that a sorcerer has revived the deadly Knights of Medhir. Morgause returns and is determined to end Uther's reign at Camelot.

    Director: Jeremy Webb

    Writer: Julian Jones

  • The Eye of the Phoenix
    8.5/10905 votes
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    #8 - The Eye of the Phoenix

    Season 3 Episode 8 - Aired 10/30/2010

    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?

    Director: Alice Troughton

    Writer: Julian Jones

  • The Darkest Hour (1)
    8.5/101,076 votes
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    #9 - The Darkest Hour (1)

    Season 4 Episode 1 - Aired 10/1/2011

    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.

    Director: Alice Troughton

    Writer: Julian Jones

  • A Servant of Two Masters
    8.5/10913 votes
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    #10 - A Servant of Two Masters

    Season 4 Episode 6 - Aired 11/5/2011

    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?

    Director: Alex Pillai

    Writer: Lucy Watkins

  • The Sword in the Stone (1)
    8.5/10796 votes
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    #11 - The Sword in the Stone (1)

    Season 4 Episode 12 - Aired 12/17/2011

    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.

    Director: Alice Troughton

    Writer: Jake Michie

  • Arthur's Bane (1)
    8.5/101,104 votes
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    #12 - Arthur's Bane (1)

    Season 5 Episode 1 - Aired 10/6/2012

    Camelot faces a new golden age, but even as the city flowers, the dark seeds of destruction are being sown. In the frozen wastelands of the north, men are disappearing without a trace. King Arthur and his knights undertake a dangerous mission into the unknown in search of answers - but once there, Merlin finds himself locked in a battle unlike any he has fought before.

    Director: N/A

    Writer: N/A

  • The Sins of the Father
    8.4/10940 votes
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    #13 - The Sins of the Father

    Season 2 Episode 8 - Aired 11/14/2009

    Arthur is challenged to a duel by a mysterious warrior. Arthur and Merlin then find themselves on a quest on Morgause's behalf. A dark secret is discovered by Arthur that could change Camelot forever.

    Director: Metin Hüseyin

    Writer: Howard Overman

  • The Wicked Day
    8.4/10844 votes
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    #14 - The Wicked Day

    Season 4 Episode 3 - Aired 10/15/2011

    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?

    Director: Alice Troughton

    Writer: Howard Overman

  • Arthur's Bane (2)
    8.4/10884 votes
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    #15 - Arthur's Bane (2)

    Season 5 Episode 2 - Aired 10/13/2012

    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.

    Director: N/A

    Writer: N/A

  • Le Morte d'Arthur
    8.3/101,081 votes
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    #16 - Le Morte d'Arthur

    Season 1 Episode 13 - Aired 12/13/2008

    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?

    Director: David Moore

    Writer: Julian Jones

  • Queen of Hearts
    8.3/10826 votes
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    #17 - Queen of Hearts

    Season 3 Episode 10 - Aired 11/13/2010

    When Uther banishes Gwen from the kingdom, Arthur resolves to leave Camelot with her.

    Director: Ashley Way

    Writer: Howard Overman

  • The Drawing of the Dark
    8.3/10757 votes
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    #18 - The Drawing of the Dark

    Season 5 Episode 11 - Aired 12/15/2012

    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?

    Director: Declan O'Dwyer

    Writer: Julian Jones

  • Excalibur
    8.2/101,075 votes
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    #19 - Excalibur

    Season 1 Episode 9 - Aired 11/15/2008

    Uther's past comes back to haunt him as a mysterious Black Knight interrupts Arthur's coming-of-age celebrations, throwing down his gauntlet and challenging the Knights of Camelot to combat. The Black Knight, seemingly unstoppable, makes easy work of his combatants. But who is the Black Knight, and why is Uther so uneasy?

    Director: Jeremy Webb

    Writer: Julian Jones

  • The Labyrinth of Gedref
    8.2/101,064 votes
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    #20 - The Labyrinth of Gedref

    Season 1 Episode 11 - Aired 11/29/2008

    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?

    Director: Stuart Orme

    Writer: Howard Overman

  • The Witchfinder
    8.2/10937 votes
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    #21 - The Witchfinder

    Season 2 Episode 7 - Aired 11/7/2009

    In his determination to rule magic out of Camelot forever, Uther hires the services of Aredian, a terrifying witch hunter who is most feared due to the fact that he stops at nothing in the quest to uncover all and every kind of sorcery. Even though no one is under direct suspicion, several people in Camelot are afraid that the witch hunter could see straight through them: Morgana is worried that Uther might have her executed and Gaius is concerned for the fate of Merlin and his own, since caring for the young warlock is considered crime and treason. Will all three be able to escape a dreadful fate?

    Director: Jeremy Webb

    Writer: Jake Michie

  • The Lady of the Lake
    8.2/101,019 votes
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    #22 - The Lady of the Lake

    Season 2 Episode 9 - Aired 11/21/2009

    Freya is found by Merlin trapped in a bounty hunter's cage and decides to try and help her escape. Merlin refuses to listen to Gaius' warnings not to get involved. After freeing her Merlin hides Freya in the tunnels beneath Camelot. Merlin is forced to make some hard decisions to keep Freya safe.

    Director: Metin Hüseyin

    Writer: Julian Jones

  • The Tears of Uther Pendragon (1)
    8.2/10947 votes
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    #23 - The Tears of Uther Pendragon (1)

    Season 3 Episode 1 - Aired 9/11/2010

    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?

    Director: Jeremy Webb

    Writer: Julian Jones

  • The Tears of Uther Pendragon (2)
    8.2/10872 votes
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    #24 - The Tears of Uther Pendragon (2)

    Season 3 Episode 2 - Aired 9/18/2010

    With the help of the Great Dragon, Merlin manages to return to Camelot only to find out that is it on the verge of invasion: Morgause and Cenred have teamed up and plot against a weakened Uther. Cenred's initial reluctance is won over by the fact that they count on an ally within Camelot walls who will ensure the castle is taken. Uther is unable to rule which forces Arthur to step up front and defend the citadel agains Cenred's powerful army. With the help of Morgause and to make things worse, Morgana plays a deadly card and summons a skeleton army to wreak havoc within the castle walls. Camelot's fate rests once again on Arthur's shoulders and Merlin's magic as they fight in their own way to hold off both an army of the living and an army of the dead. Will they manage to succeed?

    Director: Jeremy Webb

    Writer: Julian Jones

  • The Secret Sharer
    8.2/10764 votes
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    #25 - The Secret Sharer

    Season 4 Episode 7 - Aired 11/12/2011

    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?

    Director: Justin Molotnikov

    Writer: Julian Jones