While his family opens Christmas gifts, Everytown resident John Cabal (Massey) broods over news of a war scare, little comforted by a friend's suggestion that war at least stimulates progress. Before long his fears are realized: Distant gunfire is quickly followed by waves of hostile aircraft, and Everytown is overwhelmed.
The war drags on for decades until both sides are exhausted and broken. Worse, the survivors face a deadly plague. With few doctors and no medicine, the world's population, already laid waste by a 30-year conflict, is cut in half.
By 1970 a man called the Chief (Richardson) is running Everytown. Shooting the afflicted on sight has ended worries of plague, and war on the "hill people" has the town rallying around him. He needs airplanes to overcome his enemies, though, and his engineer, Richard Gordon (deMarney), growls that without petrol and parts, flying is finished. But even as Gordon is speaking, a strange aircraft lands in their midst. Its pilot is John Cabal.
Cabal, part of a band of scientists trying to push back barbarism, is imprisoned, but Gordon secures his help in salvaging a single plane. The mechanic then escapes to warn Cabal's friends, returning with a fleet of huge airships that bomb Everytown with "gas of peace"; the Chief, seeing the end of his world, is the only casualty.
By 2036 the world is remade, and Everytown is a vast city of soaring towers. But a new discomfort has arisen, given voice by Theotocopulos (Hardwicke). Constant progress--represented by a "space gun" that will shoot man to the moon--isn't wanted anymore, he says. Cabal's descendant must defend progress against the incited masses, first with words and then hand-to-hand while the last-chance firing of the space gun approaches.
A sweeping spectacle




