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With Arthur's forces outnumbered, Merlin arrives in his guise as the aged sorcerer to defeat Morgana's army with magic. Arthur kills Mordred but is wounded and rescued by ...

Merlin finds himself facing the future he's fought so long to avoid. ...

Merlin sees Mordred helping Kara, a wounded Druid with whom he was once in love, but agrees to keep it secret. Later Kara tries to kill Arthur and is sentenced to death, ...

Morgana captures Alator - her former ally who later sided against her - in order to find out the identity of the legendary warlock known to the Druids as Emrys (still una ...

Merlin relays his suspicions to Arthur and they shadow Guinevere as she goes to meet Morgana. Merlin learns from ancient priestess the Dochraid that the spell on the quee ...

Earnest young druid Daegal begs Merlin to come to his village and save his dying sister, but the boy leads him into a trap where he's left to die by Morgana. Arthur meanw ...

After Arthur is unseated from his horse, his saddle is shown to have been tampered with and stable groom Tyr Seward blamed. Imprisoned, he tells Merlin he saw the true cu ...

After visiting her father's grave, Guinevere is captured by Morgana and imprisoned in the infamous Dark Tower haunted by ghostly visions and screams. Merlin and Arthur le ...

With the help of King Odin who blames Arthur for the death of his son Morgana invades the Kingdom of Nemeth in another attempt to take over Camelot. While Odin holds King ...

Arthur rescues an old lady accused of sorcery, who gives him a horn with which to summon the spirit world. Despite Gaius's warning, he uses it to briefly meet his father ...

Ruadan rescues his daughter but is fatally wounded in the process. Merlin and Arthur are route-marched to Morgana's wintry hide-out. Mordred shows them some kindness but ...

Arthur has been king for three years without incident, but now an expedition north to the land of Ismere, led by Gwaine and Percival, is captured by Morgana and fellow so ...

Merlin summons the dragon to vanquish the pursuers and uses his magic to kill Agravaine. Hiding in the woods with Guinevere, Tristan and Isolde, Arthur confesses his self ...

As Morgana's forces capture Camelot, Arthur at last comes to see his uncle's treachery. He is reluctant to flee, but Merlin bewitches him into escaping with him, temporar ...

As Arthur celebrates his engagement to Princess Mithian to unite their countries, the banished Guinevere witnesses a raid on her village by warlord Helios and afterwards ...

The knights come across a shrine built on a site where Druids were massacred, and where a thirsty Elyan inadvertently desecrates it by drinking from its well. As a result ...

When the menfolk of Guinevere's home village fall victim to a mysterious illness, Gaius sends Merlin, along with Guinevere and the knights, to cure them, but they are sid ...

Morgana suspects Gaius knows the whereabouts of Emrys, the wizard she was told to fear. Agravaine renews his efforts to throw suspicion on the old court physician before ...

When Merlin falls into Morgana's hands, he becomes a deadly weapon in her fight for supremacy. Using ancient magic, she pits friend against friend to create the perfect a ...

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 ...

The mysterious Julius Borden arrives in Camelot with news of a magical secret that threatens to change the landscape of the kingdom forever. He has located the final part ...

The kingdom is on the brink of collapse, with Morgana poised to strike. As Lancelot races back to Camelot with the dying Merlin, Arthur must continue on his mission to va ...

The new queen of Camelot proves to be far crueler than Uther, who is made to watch from his dungeon as she slaughters innocents. Guinevere helps Sir Leon escape from pris ...

Sir Leon is nursed back to health by Druids using the Cup of Life after he is the sole survivor of an attack by Cenred's men. It purportedly grants immortality to those w ...

Camelot's legendary tournament only has one rule: there are no rules whatsoever. Terrifying warriors start to fill the mythical city, Gilli amongst them. Despite his smal ...

Prophetic dreams of Guinevere becoming Camelot's Queen torment Morgana. Morgause encourages her to reveal Arthur and Gwen's courtship to Uther, knowing the king will do w ...

A healer is in Camelot using magic to heal the sick, and Gaius quickly realizes it is Alice, a woman whom he was about to marry many years earlier until she had to flee f ...

Arthur must journey alone to seek out an ancient sorcerer, the Fisher King, and retrieve a golden trident to prove his right to the throne. Morgana gives him an amulet, t ...

Gwen faces an impossible dilemma when she is forced to choose between saving the life of her estranged brother (Elyan) or Arthur. With one of them certain to die at the h ...

Arthur is pressured into an arranged marriage with a visiting princess, Elena. Arthur's reservations are vindicated when Merlin discovers Elena may not be exactly all she ...

Fleeing enemies, Merlin and Arthur take refuge in The Valley of the Fallen Kings. There, the sorcerer Taliesin cures the wounded Arthur and shows Merlin the Crystal Cave, ...