Supervolcano

Molten lava bulging against the Earth's crust beneath America's Yellowstone Park will explode through with devastating effect - it's just a question of when, say scientists. This factual drama set in the near future depicts such an outcome based on evacuation procedures and predictions by volcanologists and futurologists. The year is 2020 and the world faces the ultimate threat. Not nuclear war or a terrorist attack, but the eruption of a gigantic 'supervolcano' simmering beneath Yellowstone Pa…