archytele The Vault
Season guide

Merlin: Season 2

13 episodes Premiered Sep 19, 2009 Updated Oct 1, 2026

The second series of Merlin finds Camelot more vulnerable than ever to the dark forces of magic, forcing Merlin to make difficult decisions in order to protect Arthur, ensure the future king's survival and prevent the mythic kingdom from being destroyed. As the second season unfolds within this British fantasy-adventure drama broadcast on BBC One and created by Julian Jones, Jake Michie, Johnny Capps, and Julian Murp

Previously on Merlin

Season 2 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Merlin is a young man gifted with extraordinary magical powers.
  • ⚡ Prince Arthur is the heir to the crown of Camelot.
  • ⚡ Merlin and Prince Arthur share an unlikely friendship and a close relationship.
  • ⚡ The series is a British fantasy-adventure drama loosely based on Arthurian legends and created for the BBC.
Advertisement

Season overview

The second series of Merlin finds Camelot more vulnerable than ever to the dark forces of magic, forcing Merlin to make difficult decisions in order to protect Arthur, ensure the future king's survival and prevent the mythic kingdom from being destroyed. As the second season unfolds within this British fantasy-adventure drama broadcast on BBC One and created by Julian Jones, Jake Michie, Johnny Capps, and Julian Murphy, the narrative continues to explore the foundational Arthurian legends regarding the close relationship and unlikely friendship between Merlin, a young man gifted with extraordinary magical powers, and Prince Arthur, who serves as the heir to the crown of Camelot. Throughout this season, the stakes remain centered on the preservation of the kingdom and the protection of the future king against ongoing threats from dark forces.

Advertisement
Season 2 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 2 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 2: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

31%
69%
Mytharc (4): Crucial lore & season climaxes
Core (9): Character development & subplots
Side Quest (0): Standalone / filler
S2·E1 Mytharc

The Curse of Cornelius Sigan

Sep 19, 2009 · 44 min

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 som

S2·E2 Core

The Once and Future Queen

Sep 26, 2009 · 44 min

Arthur is determined to win an upcoming jousting competition at Camelot. Gwen challenges Arthur to give up his spoilt ways after he goes undercover with her and Merlin. Myror shows

S2·E3 Core

The Nightmare Begins

Oct 3, 2009 · 44 min

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 wo

S2·E4 Core

Lancelot and Guinevere

Oct 10, 2009 · 44 min

Gwen is mistaken for Morgana and kidnapped by the savage outlaw Hengist. Uther refuses to pay her ransom, so Arthur defies his father and heads out into dangerous enemy territory t

S2·E5 Mytharc

Beauty and the Beast (1)

Oct 24, 2009 · 43 min

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

S2·E6 Core

Beauty and the Beast (2)

Oct 31, 2009 · 44 min

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.

S2·E7 Core

The Witchfinder

Nov 7, 2009 · 44 min

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 nothin

S2·E8 Core

The Sins of the Father

Nov 14, 2009 · 44 min

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 cha

S2·E9 Core

The Lady of the Lake

Nov 21, 2009 · 44 min

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 he

S2·E10 Core

Sweet Dreams

Nov 28, 2009 · 44 min

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 happ

S2·E11 Core

The Witch's Quickening

Dec 5, 2009 · 42 min

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 h

S2·E12 Mytharc

The Fires of Idirsholas (1)

Dec 12, 2009 · 44 min

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

S2·E13 Mytharc

The Last Dragonlord (2)

Dec 19, 2009 · 49 min

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 Dragonlo

Advertisement