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.
Director
William Girdler
Christopher George
Steve Buckner
Leslie Nielsen
Paul Jenson
Lynda Day George
Terry Marsh
Richard Jaeckel
Prof. Taylor MacGregor
Michael Ansara
Daniel Santee
Ruth Roman
Mrs. Shirley Goodwyn
Jon Cedar
Frank Young
Paul Mantee
Roy Moore
Walter Barnes
Ranger Tucker
Andrew Stevens
Bob Denning
Susan Backlinie
Mandy Young
Kathleen Bracken
Beth Hughes
Michelle Stacy
Little Girl
US
