Atlantis Synopsis Far from home and desperate for answers, Jason washes up on the shores of an ancient land. A mysterious place; a world of bull leaping, of snake haired Goddesses and of palaces so vast it was said they were built by giants – this is the lost city of Atlantis . The series follows the adventures of Jason (Jack Donnelly, Dancing on the Edge), Hercules (Mark Addy, Game of Thrones) and Pythagoras (Robert Emms, War Horse) who battle against some of the most famous names of Greek legend, often in unexpected guises. The show also stars Jemima Rooper (One Chance) as Medusa, Aiysha Hart (About Time) as Ariadne, Sarah Parish (Hatfields & McCoys) as Pasiphae and Juliet Stevenson (The Hour) as The Oracle. All of these characters will return in season two.