The Adventures of Merlin

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

A knight (guest star Will Mellor) with a shield of magical snakes enters the annual sword-fighting tournament.

The witch Nimueh casts a spell on a monster that poisons Camelot's drinking water; Gwen's father falls ill; Merlin disobeys Gaius.

Evil sorceress Nimueh returns and tricks Merlin into drinking from a poisoned chalice.

A magical winged creature attacks Merlin; Lancelot tells Merlin about his dream of becoming a knight of Camelot.

Enchanted flowers make Morgana ill and Gaius is unable to find a cure; Merlin finds that he and Edwin have more in common than he'd thought.

Morgana fears that Arthur may lose more than his heart when he becomes smitten with a mysterious girl he and Merlin aided in the forest.

Merlin is forced to choose between saving a young Druid's life and protecting Arthur.

A mysterious black knight crashes Arthur's coming-of-age ceremony and challenges the knights of Camelot; secrets are revealed that Uther would rather keep hidden.

Merlin's mother, Hunith, arrives in Camelot, desperate for help protecting her village; when Uther refuses to help Hunith, Merlin, Arthur and Morgana join forces.

When Arthur kills a unicorn, Camelot's crops die and the water turns to sand; in order to save the kingdom Arthur must pass a series of tests.

Gwen's father helps a renegade sorcerer turn lead into gold with a magic stone; Merlin makes a shocking discovery.

During a hunting trip, Arthur and his men encounter a huge monster with the head of a serpent and the body of a lion.