Over 230 square miles leveled in moments... 540 million tons of ash and volcanic rock exploded 12 miles high... One cubic mile of earth blasted from the crest of one of the world's most beautiful snowcapped domes. Captured in rare and spectacular aerial photography and survivors' own words and pictures, witness the terrifying fury of the worst volcanic disaster in American history. Then, behold the miraculous natural recover of the land and the new and awesome beauty of the volcano today, nearly two decades since it's devastating eruption. Guided by Mount St. Helens national volcanic monument geologists, learn the prehistoric secrets of the mountain. Now you can decide which is the most awe-inspiring story the mountain has to tell; it's cataclysmic eruption or it's incredible rebirth.