![](https://image.tmdb.org/t/p/w92/eUjvkudVrcE67geVOCABDZnKMZv.jpg)
The 1980 eruption of Mount St. Helens was the deadliest in U.S. history. Survivor testimonies and rare images reveal the cataclysms it unleashed.
Bill Ratner,
Added on Disney 2022-04-12.