After securing two victories against the Resh, Diego Perez looks forward to a routine diplomatic visit to the peaceful water planet, Amashi. Tranquility gives way to chaos when they explore mysterious formations and encounter the Trologs, a vengeful species of land dwellers from Amashi's distant past. They have come with a weapon of indescribable power capable of tearing Amashi apart. With earthquakes threatening devastation, Diego and his crew embark on a journey to Trolog to prevent the destruction. Can they stop the impending catastrophe, or will they fall to adversaries who bear an eerie resemblance to Diego himself?