The depletion of the earth's ozone layer causes animals above the altitude of 5000 feet to run amok, which is very unfortunate for a group of hikers who get dropped off up there by helicopter just before the quarantine is announced.
Steve Buckner
Paul Jenson
Terry Marsh
Prof. Taylor MacGregor
Daniel Santee
Mrs. Shirley Goodwyn
Frank Young
Roy Moore
Ranger Tucker
Bob Denning
Mandy Young
Beth Hughes
John Goodwyn
Little Girl
Sheriff
Helicopter Pilot
Old Man in Bar
TV Announcer
Ranger's Wife
Sam (uncredited)
