The Warrior of Temra Mystic Knights of Tir Na Nog : Season 1 Episode 43

After suffering numerous losses, Maeve travels to the castle of her former teacher, Nemain, to unleash a powerful half human/half demon warrior named Lugad. The new warrior of Temra quickly earns victories for Maeve and Cathbad fears that not even the Mystic Knights will be able to defeat him.