Lefteris, the forgotten son of the Kastaros family, returns to Ark in search of his long lost father. There he encounters a family he never knew he had. The enigmatic and powerful Kastaros family. Bonded to an ancient and terrible creature known as the Anthozoa, they each possess tremendous stolen power. Threatened by the creatures wrath, Lefteris and his family must confront the sins of their past if they wish to survive.