Life has been pretty peaceful for shepherd-boy Corydon and the other monsters since their epic battle with the heroes. Then the Minotaur is kidnapped and Corydon and his friends are faced with a rescue mission: a mission which will lead them on a dangerous voyage across the sea, all the way to the celebrated city of Atlantis. But Atlantis is a city riven by secrets, with a war between the gods threatening to tear it apart. Can Corydon and his friends rescue the Minotaur, before Atlantis is destroyed forever?