Using past natural disasters as an example, this series explores what would happen should a major catastrophe strike the United States. See what mega disasters could be coming our way. It's happened before; it will happen again.
Volcanic eruptions are one of the most powerful forces on Earth. From spectacular lava fountains to deadly explosions, they can bury entire cities in clouds of ash and gas, or turn quiet rivers into seething torrents of mud and debris.
S1E1 50 min