An eco-horror film warning of the dangers posed by the depleted ozone layer.

A space virus that entered Earth’s atmosphere unimpeded has had a devastating effect on the behavior of animals living at an altitude of five thousand feet. The first to discover this were tourists who had been flown into the mountains by helicopter. Together with their guides, they defend themselves against animals whose aggression and bloodlust have increased. But their strength is not endless, and their supplies are running out…