This takes place several years after the events of "Monster Survivor". A motley crew of hapless pirates is joined by a an oil company's ex employe. He informs them of a vast treasure, belonging to an internationally renowned businessman who vanished years ago, hidden on a remote island not marked on any map. He offers to share the treasure in exchange for their help. Though surprised, the lure of riches compels them to accept, and they all set sail for this misty and enigmatic destination. But sometimes, there are good reasons why things are hidden, and it will already be too late when they realize where they've landed. In a place considered for years a legend, but which is, alas, all too real : Monster Island !