In the spring of 1980, Mount St. Helens awoke from a century-long slumber with a series of dramatic changes. Most threatening was a bulge on the side of the snowy peak, pushing steadily outward. Near Spirit Lake, local resident Harry Truman refused to leave his lodge, even as scientists like David Johnston warned about potential destruction. On May 18, the mountain finally blew, enveloping whole communities in ash and smoke. Mudflows destroyed bridges, houses and highways, and fifty-seven people, including Truman and Johnston, lost their lives. Today, the mountain is quiet. Plants and animals have returned and hiking trails have been rebuilt, but the scars remain. Join author and journalist Jim Erickson as he recounts the unforgettable saga of the Mount St. Helens eruption.