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The Worst Episodes of Merlin

Every episode of Merlin ranked from worst to best. Explore the Worst Episodes of Merlin!

The Worst 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.

Seasons5

  1. Background image for Lamia
    6.6/10(14 votes)

    #1 - Lamia

    S4:E8

    A mysterious illness draws Merlin to a distant village. But it soon becomes clear that there is more at stake than just his patients' well-being as something sinister turns the air sour. Far from home and with no-one to trust, Merlin becomes embroiled in a deadly game of cat and mouse. No longer sure who is the hunter and who is the hunted, can the young warlock survive long enough to uncover the truth?

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  2. Background image for The Hunter's Heart
    7.1/10(10 votes)

    #2 - The Hunter's Heart

    S4:E11

    Morgana ends up discovering a powerful ally in the Southron warlord Helios and they come up with the perfect plan to bring Camelot to its knees. With Arthur preoccupied by the beautiful Princess Mithian, it ends up falling to an absent friend to raise the alarm.

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  3. Background image for Love in the Time of Dragons
    7.3/10(793 votes)

    #3 - Love in the Time of Dragons

    S3:E9

    An old flame of Gaius' arrives in Camelot under the influence of a Manticore.

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  4. Background image for The Secret Sharer
    7.3/10(14 votes)

    #4 - The Secret Sharer

    S4:E7

    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?

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  5. Background image for Lancelot du Lac
    7.3/10(14 votes)

    #5 - Lancelot du Lac

    S4:E9

    When Sir Lancelot returns from the dead, old feelings reignite, as the drama continues. Gwen must fight temptation before she commits an unspeakable act of betrayal; one that would destroy the legacy of Camelot forever. With heads and hearts thrown into turmoil, Merlin becomes suspicious. Can a man really defy death, or is there something more sinister at play?

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  6. Background image for The Gates of Avalon
    7.4/10(1.1k votes)

    #6 - The Gates of Avalon

    S1:E7

    Morgana has a nightmare and sees Arthur's death at the hands of a strange but beautiful girl. Meanwhile, hunting in the forest, Merlin and Arthur save the same girl, Sophia, and her father, Aulfric from attack by bandits and bring them to Camelot for refuge. Morgana realizes that Sophia is the girl from her nightmare and tries to warn Arthur, who is smitten with her. As the truth of Morgana's magical gift for seeing future events unfolds, so does a father and daughter's plan to bring down the kingdom of Camelot by sacrificing Arthur in return for eternal life.

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    Director:Jeremy Webb
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  8. Background image for Beauty and the Beast (1)
    7.4/10(989 votes)

    #7 - Beauty and the Beast (1)

    S2:E5

    Lady Catrina and her strange servant Jonas arrive in Camelot, where they are welcome to stay by a most delighted king Uther, who becomes captivated by his latest guest. Arthur, on the contrary, far from sharing his father's enthusiasm and in the sight of the flirting going on, is pretty appalled with the situation. Merlin and Gaius have the feeling that she is not what she seems and their suspicions are proven true when Merlin discovers that Lady Catrina is a troll and that unfortunately, her intentions are far beyond the prize of a king's heart. Horrified, he reveals the truth to Arthur, who doesn't believe him. Merlin embarks in the task of proving the real nature of the woman while at the same time saving Uther from ruin and Camelot from fall. Will the young warlock be able to overcome the powerful magic of the troll before it's too late?

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    Director:David Moore
  9. Background image for The Changeling
    7.4/10(817 votes)

    #8 - The Changeling

    S3:E6

    Uther pressures Arthur into an arranged marriage with a visiting princess, Elena, though Merlin soon has reservations after discovering that Elena may not exactly be who she claims to be. As he tries to uncover the princess' dark secret, he learns that Elena's nanny is a Pixie. But what are their motivations? Who do they work for? And most important of all, what benefit do they get from her marriage to Arthur, the heir to the throne of Camelot? Will Merlin be able to get to the bottom of it all and prevent Arthur from making the biggest mistake of his life?

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    Director:David Moore
  10. Background image for Aithusa
    7.4/10(14 votes)

    #9 - Aithusa

    S4:E4

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

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    Director:Alex Pillai
  11. Background image for His Father's Son
    7.4/10(14 votes)

    #10 - His Father's Son

    S4:E5

    Arthur faces his first true test as King when he incurs the wrath of the formidable Queen Annis. With the lives of thousands hanging in the balance, Arthur must find the strength to be his own man and become the leader Camelot so desperately needs.

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    Director:Alex Pillai
  12. Background image for A Herald of the New Age
    7.4/10(11 votes)

    #11 - A Herald of the New Age

    S4:E10

    The Camelot Knights stumble across an eerie shrine deep in the forest, its chilling atmosphere betraying a dark history best left undisturbed, as the magical drama continues. But when Elyan ignores Merlin's warning, his actions spark a chain of events more frightening than anyone could possibly have imagined... Can a grievous wrong be put right? Or will past demons change the future forever?

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  13. Background image for Valiant
    7.5/10(1.3k votes)

    #12 - Valiant

    S1:E2

    Camelot is hosting its annual sword tournament and knights from throughout the realm have come to compete for its coveted title. Amongst those hoping to win the crown is Knight Valiant.

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  14. Background image for A Remedy to Cure All Ills
    7.5/10(1.1k votes)

    #13 - A Remedy to Cure All Ills

    S1:E6

    When the Lady Morgana is struck down with a mysterious illness, Gaius is at a loss for a cure. Thankfully a new physician, Edwin Muirden is on hand to bring the King's ward back from the brink.

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    Director:Ed Fraiman
  15. Background image for A Servant of Two Masters
    7.5/10(14 votes)

    #14 - A Servant of Two Masters

    S4:E6

    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?

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    Director:Alex Pillai
  16. Background image for The Mark of Nimueh
    7.6/10(1.2k votes)

    #15 - The Mark of Nimueh

    S1:E3

    A deadly plague spreads through Camelot. When it seems that sorcery can be the only possible explanation, Merlin and Gaius race to find a cure, while Gwen is arrested and sentenced to death for practising witchcraft.

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    Director:James Hawes
  17. Background image for The Castle of Fyrien
    7.6/10(830 votes)

    #16 - The Castle of Fyrien

    S3:E7

    Gwen faces an impossible dilemma when she is forced to choose between saving the life of Elyan, her estranged brother and only sibling or Arthur's, Camelot's prince and the love of her life. When one of them is certain to find death at the hands of Cenred, who will Gwen choose? Once again, loyalty, love and friendships are tested to the limit as Arthur, Merlin and Gwen are forced to put their minds together to try and find a way out of the cruel quandary. Morgana and Morgause, in turn, will do their best ruin their plans. Will good conquer evil or will Gwen end up losing someone she loves again?

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    Director:David Moore
  18. Background image for The Sorcerer's Shadow
    7.6/10(805 votes)

    #17 - The Sorcerer's Shadow

    S3:E11

    Camelot's legendary tournament only has one rule: there are no rules whatsoever. Terrifying warriors start to fill the mythical city, Gilli between them. Despite his small stature, Gilli is ready to join the action and committed to achieve victory with a secret weapon to help him: magic. When Gilli begins to realise the full extent of his powers, Merlin becomes torn since his new friend is putting his own life in danger as well as threatening the very heart of Camelot with his actions. Will Merlin be able to make Gilli see sense before it's too late?

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    Director:Ashley Way
  19. Background image for The Dragon's Call
    7.7/10(1.7k votes)

    #18 - The Dragon's Call

    S1:E1

    Merlin is told by the Great Dragon that it is his destiny to make sure that the young Prince Arthur is kept safe. Anybody caught performing magic is punished with death and Merlin is not a fan of Arthur. When Arthur's life is endangered Merlin finds himself tested.

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    Director:James Hawes
  20. Background image for The Curse of Cornelius Sigan
    7.7/10(1.0k votes)

    #19 - The Curse of Cornelius Sigan

    S2:E1

    New servant Cedric muscles in on Merlin's position as Arthur's right-hand man, and turns the prince against his loyal friend. Merlin is convinced the slippery newcomer is up to something, and he is right - Cedric is a conman and a thief who is after a magnificent jewel, recently unearthed in a tomb far beneath Camelot. Little does he know, his precious prize is more dangerous than he could possibly imagine. Camelot has never been more vulnerable, but how can Merlin make things right when, thanks to Cedric, he might have lost Arthur's friendship for good? Merlin faces the prospect of turning to the one creature he swore he would never trust again - The Great Dragon.

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    Director:David Moore
  21. Background image for The Nightmare Begins
    7.7/10(932 votes)

    #20 - The Nightmare Begins

    S2:E3

    When Morgana's nightmares spill into waking hours, she becomes terrified that she has the power of magic. Gaius is determined to keep her in the dark for her own good but Merlin won't stand by and watch his friend suffer. He knows exactly what she's going through and he knows she needs the truth. Is Merlin about to reveal his secret at last?

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    Director:Jeremy Webb
  22. Background image for Beauty and the Beast (2)
    7.7/10(975 votes)

    #21 - Beauty and the Beast (2)

    S2:E6

    Lady Catrina has now been crowned and is now known as Queen Catrina. She accuses Merlin of stealing and he is driven into hiding, and must now find a way to expose her true form.

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  23. Background image for Sweet Dreams
    7.7/10(895 votes)

    #22 - Sweet Dreams

    S2:E10

    Peace talks are held at Camelot when dignitaries from rival kingdoms arrive. King Alined is determined there will be no peace though and will use magic to make sure his wishes happen.

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  24. Background image for The Dark Tower
    7.7/10(750 votes)

    #23 - The Dark Tower

    S5:E6

    When Gwen is snatched from Camelot without warning, Merlin knows there can be only one person responsible: Morgana. Arthur is determined to rescue his Queen – but it's not going to be easy, for she is locked in the Dark Tower, a place that haunts the dreams of men. Arthur and his Knights must embark on a quest like no other, battling through a landscape riddled with hidden dangers, perilous obstacles and magical beings. As they near their goal, Merlin's sense of dread reaches breaking point. What twisted game is Morgana playing? And more importantly, just what is the final test that awaits them in the tower?

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    Director:Ashley Way
  25. Background image for A Lesson in Vengeance
    7.7/10(744 votes)

    #24 - A Lesson in Vengeance

    S5:E7

    Darkness steals into the very heart of Camelot, as Morgana and her puppet Queen hatch a sinister plan to murder the King. But when stable hand Tyr Seward becomes caught in the crossfire, he threatens to ruin everything… As the plot thickens and reaches its deadly climax, can a suspicious Merlin unravel the truth before it’s too late?

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  26. Background image for The Witch's Quickening
    7.8/10(872 votes)

    #25 - The Witch's Quickening

    S2:E11

    Alvarr is determined to allow magic to be used gain and destroy Camelot. Alvarr needs to reclaim the Crystal of Neahtid to make his plan work. Alvarr and Morgana try to get their hands on the crystal and use a druid boy to help them. Merlin is surprised when he finds out the real power of the crystal.

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Worst Episodes Summary

"Lamia" is the worst rated episode of "Merlin". It scored 6.6/10 based on 14 votes. Directed by Justin Molotnikov and written by Jake Michie, it aired on 11/19/2011. This episode scored 0.5 points lower than the second lowest rated, "The Hunter's Heart".