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 ...

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 ...

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 ...

Learning from Agravaine that Arthur plans to wed Guinevere, Morgana uses necromancy to revive Lancelot, though he has no proper recollection of his past life and, gratefu ...

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 mighty citadel is buzzing in anticipation of the prince's birthday celebrations, but Arthur's old adversary, Odin, promises to ensure this is one party Camelot will n ...

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 ...

Morgana takes the dying Morgause to the Isle of the Blessed where she unwittingly tears the veil to the spirit world, unleashing the Dorocha, invisible ghosts that begin ...

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 ...

The Great Dragon returns Merlin to Camelot where, convincing Gaius of Morgana's treachery, they break the curse on Uther by burning the mandrake doll. Nonetheless, they f ...

A year after being whisked away from Camelot, Morgana is found, disheveled and bruised in the forest and claiming abduction by bandits. Superficially contrite and charmin ...

Morgana has gone with Morgause, and the dragon, freed by Merlin, repeatedly attacks Camelot, causing huge fire damage. Only a dragon-lord is capable of containing the bea ...

Using an incantation, Morgause revives the deadly Knights of Medhir and, whilst Merlin and Arthur are the sole survivors of the party sent to beat the knights, Morgause u ...

Merlin spies on the troll and steals the potion she uses to resemble Catrina, replacing it with a fake one made by Gaius. Consequently she turns back into a troll, in vie ...

Morgana realizes she has magic powers when she sets her room on fire from her bed. Against the advice of Gaius and the dragon, Merlin sends her to seek advice from the Dr ...

Realising that his jousting opponents always let him win because he is the royal prince, Arthur pretends to leave court and enters the lists in disguise to win on merit. ...