After being run out of Camelot, Galahad finds himself searching for purpose in a large and confusing world. But to his great surprise, he stumbles upon the bumbling King Pellinore and the enigmatic Questing Beast, who set him on a path that will take him to the very ends of the earth. Along the way, he discovers new friends in Sir Percival and Sir Bors and together they find themselves on quest to find no less than the legendary Holy Grail… and the entire fate of humanity may hang in the balance!