Centers on the events leading up to the cataclysmic 1980 eruption of Mount St. Helens in Washington, with the story beginning on the day volcanic activity started on March 20, 1980, and ending on the day of the eruption, May 18, 1980.
as Harry Truman
as David Jackson
as Linda Steele
as Clyde Whittaker
as Otis Kaylor
as Sheriff Wayne Temple
as Kilpatrick
as Hendricks
as Mr. Ellison
as David Crockett
as Lloyd Wagner
as Col. Arnholt
as Dr. Romarantin
as Newscaster
as Reeder
as Schmitty
as Chad
as Curry
as Bedsoe
as Patty Jean
as Bandleader
as Pamela
as Cook
as English Reporter
as Photographer
as Shopkeeper
as Ginny
as Radio Operator
as Resnick
as Cindy
as Mrs. Ellison
as Stunt Man
as Stunt Man
as Reporter #1
as Reporter #2
as Girl on the Street
as Stunt Girl
as Stunt Baby
as Logger #1
as Logger #2
as Logger #3
as Guardsman
as News Director
as Man Watching TV
as Narrator (voice) (uncredited)
