The Greeks have given the world its greatest body of myths, including the myth of Jason, an epic tale of the hero's quest and the ancestor of Star Wars and Lord of the Rings. Jason is presented with a "mission impossible": to sail into the unknown to find the Golden Fleece. He is saved by the priestess Medea and her magical arts, but her love comes at a high price. A fairy tale? Or was there a real voyage? Wood heads from Greece to the wild mountains of the Caucasus to find the truth behind the Jason legend.