During Arthur’s knighting ceremony, a Black Knight arrives to challenge the court. Merlin enlists the Great Dragon to forge a sword capable of killing the undead—a blade named Excalibur. 10. The Moment of Truth
A deadly plague sweeps through Camelot, turning victims’ blood to water. The disease is magical, created by Nimueh, a High Priestess of the Old Religion seeking revenge on Uther. When Gaius falls ill, Merlin must track down Nimueh and bargain for an antidote. The catch: the antidote requires a life for a life.
bites Arthur, leaving him on the brink of death. To save him, Merlin travels to the Isle of the Blessed merlin season 1 all episodes
A new physician, Edwin Muirden (Julian Rhind-Tutt), arrives with miraculous cures. He quickly wins Uther’s favor, making Gaius look obsolete. But Edwin is a sorcerer whose parents were executed by Uther. He plans to use a magical insect to control Arthur’s mind and force Arthur to kill the king.
Nimueh tricks Arthur into drinking poison meant for Merlin. Arthur must retrieve a rare antidote from a dangerous cave while Merlin assists him magically from afar. During Arthur’s knighting ceremony, a Black Knight arrives
A lore-heavy episode that ties directly to the legend. Seeing Arthur wield Excalibur for the first time is a genuine thrill.
The pilot opens with a shocking prologue: Uther executes a young sorcerer, whose mother—Lady Helen—swears revenge. Years later, Merlin arrives in Camelot. He saves Arthur from a brawl using magic, alerting the court sorcerer, the Great Dragon (voiced by John Hurt), who lives beneath the castle. The Dragon tells Merlin his destiny: to protect Arthur, who will unite the land of Albion. The Moment of Truth A deadly plague sweeps
Merlin returns to his home village to defend it from raiders. He, Arthur, Morgana, and Gwen must organize the villagers to fight back.