A grass & leaves eating virus escapes from a Texas oil well in 2026. In a few decades the world is losing oxygen and civilization is dying totally. Neo-Nazis manage to establish total control and reverse evolve people...and a few survive above an ice wall in Alaska. Two 'deep breathers' kill guards and are chased by a giant robot with two polar bears as trackers. The commander of the UCC organization is finally attacked and the world is saved.