In the year 2069, the British ship "Elias Rits" sailed to Kermadec Island on a private investigation mission. Shortly thereafter, satellites reported that beacon transmissions from the ship have stopped. Seeing that further investigation required exploration of hostile environment and deep sea, the authorities dispatched a special team known as W-ODL to find out what has happened to the ship. Navigating a powerful mecha, the American pilot Fredric von Nyuya has to get to the bottom of the mystery and report his findings to the crew.