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A Lesson in Vengeance

S5 : E7

TV-14 | 43 min | Aired: 11.17.12

Darkness steals into the very heart of Camelot as Morgana and her puppet queen hatch a sinister plan.

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Merlin and Arthur must work together to protect the great kingdom of Camelot against dark sorcery.

Cast

John Hurt, Colin Morgan, Bradley James

Executive Producers

Johnny Capps, Julian Murphy

full-episodes (13)

The Dragon's Call

S1 : E1 | TV-PG | 44 min | Aired: 09.20.08

Merlin arrives in Camelot, where he meets Gaius, the court physician, and Arthur, a bully who challenges him to a duel.
Valiant

S1 : E2 | TV-PG | 45 min | Aired: 09.27.08

Camelot is hosting its annual sword tournament and knights from throughout the realm have come to compete.Among those hoping to win the crown is Knight Valiant.
The Mark of Nimueh

S1 : E3 | TV-PG | 44 min | Aired: 10.04.08

The King Arthur legend continues, as 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.
The Poisoned Chalice

S1 : E4 | TV-PG | 45 min | Aired: 10.11.08

The evil sorceress Nimueh is back to wreak havoc on Camelot, and this time Merlin is her target. She tricks the young warlock into drinking from a poisoned chalice.
Lancelot

S1 : E5 | TV-PG | 44 min | Aired: 10.18.08

Merlin is saved from a terrifying flying monster by a heroic stranger - Lancelot. Eager to repay him, Merlin attempts to get Lancelot made a Knight of Camelot.
A Remedy To Cure All Ills

S1 : E6 | TV-PG | 44 min | Aired: 10.25.08

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

S1 : E7 | TV-PG | 44 min | Aired: 11.01.08

Arthur's chivalry leads to danger when he comes to the rescue of Sophia, a damsel in distress, and her father, Aulfric.
The Beginning of the End

S1 : E8 | TV-PG | 44 min | Aired: 11.08.08

The adventure romp continues, with Arthur finding an unlikely ally in Morgana when he decides to help a magical young fugitive.
Excalibur

S1 : E9 | TV-PG | 44 min | Aired: 11.15.08

Uther's past comes back to haunt him. A mysterious black knight rides into Camelot, throwing down his gauntlet and challenging the Knights.
The Moment of Truth

S1 : E10 | TV-PG | 43 min | Aired: 11.22.08

Arthur kills a unicorn, bringing a curse down upon all of Camelot. With the fabled city fast running out of both food and water, he is desperate to make amends and help his people.
The Labyrinth of Gedref

S1 : E11 | TV-PG | 43 min | Aired: 11.29.08

Mordred finds himself torn between loyalty and love, that the path he chooses will shape Camelot's destiny.
To Kill The King

S1 : E12 | TV-PG | 43 min | Aired: 12.06.08

When Gwen's father is imprisoned for treason and killed at Uther's behest, Morgana decides she must take revenge.
Le Morte d'Arthur

S1 : E13 | TV-PG | 44 min | Aired: 12.13.08

Gaius is troubled over sightings in Camelot of a Questing Beast, a creature conjured from the nightmares of a long-dead king.
The Curse of Cornelius Sigan

S2 : E1 | TV-PG | 44 min | Aired: 09.19.09

Merlin is convinced a slippery newcomer is up to something.
The Once and Future Queen

S2 : E2 | TV-PG | 45 min | Aired: 09.26.09

Merlin helps Arthur disguise his identity to enter a jousting tournament.
The Nightmare Begins

S2 : E3 | TV-PG | 44 min | Aired: 10.03.09

When Morgana's nightmares spill into waking hours, she becomes terrified that she has magic.
Lancelot and Guinevere

S2 : E4 | TV-PG | 45 min | Aired: 10.10.09

Gwen is mistaken for Morgana and kidnapped by the savage outlaw Hengist.
Beauty and the Beast Part 1

S2 : E5 | TV-PG | 43 min | Aired: 10.17.09

Uther is captivated by his latest guest, the beautiful Lady Catrina.
Beauty and the Beast Part 2

S2 : E6 | TV-PG | 45 min | Aired: 10.24.09

Newly crowned Queen Catrina settles in as Camelot's first lady.
The Witchfinder

S2 : E7 | TV-PG | 45 min | Aired: 10.31.09

Uther summons a terrifying man who will stop at nothing to uncover sorcery.
The Sins of the Father

S2 : E8 | TV-PG | 44 min | Aired: 11.07.09

When a mysterious warrior challenges Arthur to a duel.
The Lady of the Lake

S2 : E9 | TV-PG | 44 min | Aired: 11.14.09

When Merlin discovers a beautiful druid girl trapped in a cage, he knows he must help her escape. Gaius warns against getting involved, but Merlin refuses to listen.
Sweet Dreams

S2 : E10 | TV-PG | 44 min | Aired: 11.21.09

Dignitaries from rival kingdoms descend on Camelot for peace talks, but what King Alined really wants is war and he'll do everything in his power to stir up hostilities.
The Witch's Quickening

S2 : E11 | TV-PG | 43 min | Aired: 11.28.09

Uther has a precious magical relic of the Old Religion locked up tight in the Camelot vaults.
The Fires of Idirsholas

S2 : E12 | TV-PG | 44 min | Aired: 12.05.09

Gaius fears a sorcerer has revived the deadly Knights of Medhir.
The Last Dragonlord

S2 : E13 | TV-PG | 49 min | Aired: 12.12.09

The Great Dragon is finally free. Full of rage, he attacks Camelot with pitiless intensity.
The Tears of Uther Pendragon: Part 1

S3 : E1 | TV-PG | 44 min | Aired: 09.10.10

Merlin and Arthur have been on many quests in search of the missing Lady Morgana.
The Tears of Uther Pendragon: Part 2

S3 : E2 | TV-PG | 43 min | Aired: 09.17.10

The Great Dragon returns Merlin to Camelot.
Goblin's Gold

S3 : E3 | TV-PG | 44 min | Aired: 09.24.10

Merlin stumbles across a secret chamber and accidentally releases a goblin.
Gwaine

S3 : E4 | TV-PG | 43 min | Aired: 10.01.10

When Merlin and Arthur find themselves vastly outnumbered in a tavern brawl, an enigmatic man helps them.
The Crystal Cave

S3 : E5 | TV-PG | 44 min | Aired: 10.08.10

Taliesin takes the young warlock to the crystal cave and shows Merlin a glimpse of the future.
The Changeling

S3 : E6 | TV-PG | 44 min | Aired: 10.15.10

Arthur is pressured into an arranged marriage with a visiting princess, Elena.
The Castle Fyrien

S3 : E7 | TV-PG | 43 min | Aired: 10.22.10

Gwen finds herself with an impossible dilemma when she is forced to choose between Arthur and her brother.
The Eye of the Phoenix

S3 : E8 | TV-PG | 44 min | Aired: 10.29.10

Arthur embarks on a solitary quest to prove himself worthy of the Camelot throne.
Love in the Time of Dragons

S3 : E9 | TV-PG | 43 min | Aired: 11.06.10

When an old flame of Gaius' arrives in Camelot, Merlin is pleased to see a different side to his mentor.
Queen of Hearts

S3 : E10 | TV-PG | 44 min | Aired: 11.13.10

Morgana is tormented by dreams of Guinevere becoming Queen of Camelot.
The Sorcerer's Shadow

S3 : E11 | TV-PG | 44 min | Aired: 11.20.10

The only rule in Camelot's legendary tournament is that there are no rules.
The Coming of Arthur: Part 1

S3 : E12 | TV-PG | 44 min | Aired: 11.27.10

Merlin and Arthur are sent on a dangerous mission to capture the Cup of Life.
The Coming of Arthur: Part 2

S3 : E13 | TV-PG | 44 min | Aired: 12.04.10

Queen Morgana begins a reign of terrible evil over the innocent citizens of Camelot.
The Darkest Hour Part 1

S4 : E1 | TV-14 | 44 min | Aired: 10.01.11

Morgana summons the mighty Callieach to tear open the veil between the worlds.
The Darkest Hour Part 2

S4 : E2 | TV-14 | 43 min | Aired: 10.08.11

Morgana's blinkered determination threatens not only Arthur's future, but the very balance of the world.
The Wicked Day

S4 : E3 | TV-14 | 44 min | Aired: 10.15.11

The mighty citadel is buzzing in anticipation of the prince's birthday celebrations.
Aithusa

S4 : E4 | TV-14 | 43 min | Aired: 10.22.11

The mysterious Julius Borden arrives in Camelot with news of a magical secret.
His Father's Son

S4 : E5 | TV-14 | 43 min | Aired: 10.29.11

Arthur faces his first true test as King when he incurs the wrath of the formidable Queen Annis.
A Servant of Two Masters

S4 : E6 | TV-14 | 43 min | Aired: 11.05.11

When Merlin falls into Morgana's hands, he becomes a deadly weapon in her fight for supremacy.
The Secret Sharer

S4 : E7 | TV-14 | 44 min | Aired: 11.12.11

Can anyone stop Morgana before Merlin's greatest secret is revealed?
Lamia

S4 : E8 | TV-14 | 44 min | Aired: 11.19.11

A mysterious illness draws Merlin to a distant village.
Lancelot du Lac

S4 : E9 | TV-14 | 45 min | Aired: 11.26.11

Gwen must fight temptation before she commits an unspeakable act of betrayal.
A Herald of The New Age

S4 : E10 | TV-14 | 44 min | Aired: 12.03.11

The Knights of Camelot stumble across an eerie shrine deep in the forest.
The Hunter's Heart

S4 : E11 | TV-14 | 43 min | Aired: 12.10.11

Morgana finds a powerful ally in the Southron warlord Helios.
The Sword in the Stone Part 1

S4 : E12 | TV-14 | 43 min | Aired: 12.17.11

With Morgana at the helm of a vast Southron army, a deadly net is closing in around Camelot.
The Sword in the Stone Part 2

S4 : E13 | TV-14 | 44 min | Aired: 12.24.11

Merlin and Arthur are outlaws on the run. Arthur must take control before Camelot is lost forever.
Arthur's Bane: Part 1

S5 : E1 | TV-14 | 44 min | Aired: 10.06.12

King Arthur leads a search party on a mission when men start to disappear in the frozen north of Camelot.
Arthur's Bane: Part 2

S5 : E2 | TV-14 | 44 min | Aired: 10.13.12

As dawn breaks across the icy tundra, Merlin and Arthur are close to exhaustion.
The Death Song of Uther Pendragon

S5 : E3 | TV-14 | 44 min | Aired: 10.20.12

When a stranger gives Arthur the power to summon the dead, the king finds himself torn between head and heart.
Another's Sorrow

S5 : E4 | TV-14 | 43 min | Aired: 10.27.12

With Princess Mithian as the perfect bait, Morgana conjures a deception.
The Disir

S5 : E5 | TV-14 | 44 min | Aired: 11.03.12

In the inky depths of an ancient pool, three soothsayers cast a dark judgment upon the king of Camelot.
The Dark Tower

S5 : E6 | TV-14 | 43 min | Aired: 11.10.12

When Gwen is snatched from Camelot without warning, Merlin knows there can be only one person responsible.
A Lesson in Vengeance

S5 : E7 | TV-14 | 43 min | Aired: 11.17.12

Darkness steals into the very heart of Camelot as Morgana and her puppet queen hatch a sinister plan.
The Hollow Queen

S5 : E8 | TV-14 | 43 min | Aired: 11.24.12

When Merlin agrees to help a young Druid boy, he has no choice but to leave Camelot on a dangerous mission.
With All My Heart

S5 : E9 | TV-14 | 44 min | Aired: 12.01.12

Merlin knows he must act fast before Morgana's twisted control over Gwen gets further out of hand.
The Kindness of Strangers

S5 : E10 | TV-14 | 44 min | Aired: 12.08.12

Morgana leads a terrifying pursuit of her old foe, Alator of the Catha.
The Drawing of The Dark

S5 : E11 | TV-14 | 44 min | Aired: 12.15.12

Mordred finds himself torn between loyalty and love, that the path he chooses will shape Camelot's destiny.
The Diamond of the Day: Part 1

S5 : E12 | TV-14 | 43 min | Aired: 12.22.12

High in the mountains, Morgana prepares for war with a vengeful Mordred at her side.
The Diamond of the Day: Part 2

S5 : E13 | TV-14 | 48 min | Aired: 12.24.12

As the great battle rages on Camlann's mighty plain, Merlin faces his moment of destiny.

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Cast

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