Description: Travel around the world for a firsthand look at volcanoes - perhaps the most dazzling but destructive natural force on earth. Massive volcanic eruption can turn day into night, releasing the power of an atomic blast, spewing toxic avalanches of lava, gas, and ash. National Geographic Video transports you to some of the most notorious volcanoes on Earth, including Mount Pinatubo in the Philippines and Mount Unzen in Japan. Join volcanologists in their dangerous quest to forecast eruptions and save lives and experience the explosive excitement and human drama surrounding volcanoes.