Merlin Season 4 Episodes

Find out where to watch Season 4 of Merlin tonight
Overview TV Listings Seasons & Episodes Cast

Season 4 Episode Guide

Episode 1 - The Darkest Hour, Part 1

When Morgana wrenches open the gates to the Other World, only one thing is certain - nothing will ever be the same again.
Episode 2 - The Darkest Hour - Part 2

With the kingdom on the brink of collapse, Arthur and the Knights journey to the Isle of the Blessed, where their lives change forever.
Episode 3 - The Wicked Day

A carnival to celebrate Prince Arthur's birthday hides a deadly foe who promises to strike at the very heart of Camelot.
Episode 4 - Aithusa

A mysterious visitor arrives in Camelot seeking a very special prize: a dragon's egg.
Episode 5 - His Father's Son

For the first time since his coronation, Arthur finds out what it's really like to be King.
Episode 6 - A Servant of Two Masters

Merlin becomes a deadly weapon in Morgana's fight for supremacy, as she pits friend against friend to create the perfect assassin.
Episode 7 - The Secret Sharer

Morgana joins forces with the enigmatic wizard Alator to uncover a secret that could change the future. Can anyone stop her?
Episode 8 - Lamia

A mysterious illness draws Merlin to a remote village, where he finds himself fighting for survival against an enemy more deadly than he could possibly imagine.
Episode 9 - Lancelot du Lac

Camelot rejoices at the return of a long-lost friend: Sir Lancelot.
Episode 10 - A Herald of the New Age

The discovery of a shrine in the woods unearths a haunting secret from Camelot's past.
Episode 11 - The Hunter's Heart

Morgana finds a powerful ally in the warlord Helios. Together they hatch the perfect plan to force Camelot to its knees.
Episode 12 - The Sword in the Stone: Part One

Arthur and Merlin must run for their lives as a merciless Morgana attacks Camelot.
Episode 13 - The Sword in the Stone, Part 2

With Camelot lost, Merlin goes to great lengths to restore Arthur's self-belief.


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