The Legend of King Arthur - Season 1

Merlin, a wizard of the Dark Ages, grows weary of the barbarism around him and creates out of the blackness a new order of enlightenment and justice.
A tale with a host -)f legendary characters, including wily old Merlin, brave Sir Lancelot, Queen Guinevere, Sir Galahad and King Arthur himself, supreme lord and master of the Knights of the Round Table.

Merlin has given Arthur the magic sword Excalibur to help him defeat the nobles who oppose his rule. Unknown to Arthur, his half-sister Morgan, a sorceress masquerading as a nun, has sworn to kill him in revenge for her father's death.

Arthur has made himself ruler of all Britain, created the Fellowship of the Round Table and made Guinevere his queen. Morgan, determined to destroy him, has stolen his scabbard, which affords magical protection against wounds, and thrown it into a lake.

Morgan, feigning sisterly love, has intensified her campaign against Arthur. She has used magic to deceive Lancelot into thinking he has made love to Guinevere; and, disguised as a nun, has told him he must never forget his guilt.

Lancelot lies wounded in a hermit's hut. Guinevere has innocently caused the death of a Knight of the Round Table by giving him a poisoned peach from a bowl, placed there by Morgan and intended to be eaten by Guinevere.

Morgan has told Arthur that Lancelot and Guinevere are lovers and to support her charge has conjured up a vision of them kissing. Lancelot has proved Guinevere's innocence of the murder of Guido by appearing as her champion and defeating Guido's brother in a duel.

Morgan and her co-conspirators have planted more seeds of doubt in Arthur's mind regarding Lancelot and Guinevere. The pair have beea surprised by armed men at an innocent but indiscreet meeting. Lancelot has escaped; Guinevere taken prisoner.

After being rescued from sentence of death, Guinevere, with Lancelot, is living in France. Arthur and Guinevere become reconciled there but Lancelot has sworn never to return home. When Guinevere is sent back to Camelot, Mordred tries to usurp Arthur's Kingdom.