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.
as Steve Buckner
as Paul Jenson
as Terry Marsh
as Prof. Taylor MacGregor
as Daniel Santee
as Mrs. Shirley Goodwyn
as Frank Young
as Roy Moore
as Ranger Tucker
as Bob Denning
as Mandy Young
as Beth Hughes
as John Goodwyn
as Little Girl
as Sheriff
as Helicopter Pilot
as Old Man in Bar
as TV Announcer
as Ranger's Wife
as Sam (uncredited)
