Slaine MacRoth Celtic warrior and High King of the tribes of the Earth Goddess Danu, continues his journey through time. Slaine arrives in thirteenth century France, where he comes face to face with Crusader Simon De Montfort, the sworn enemy of the Cathars. While searching for the tortured reincarnation of his lover Niamh, Slaine is compelled to join forces with De Montfort in order to seek out the Grail Stone. The quest won't be easy, however Slaine will have to defeat the dark forces of El if he is to stand any chance of saving Niamh's soul!