Iain Stewart takes a grand tour of the world's most extraordinary volcanoes, rightly considered among the most destructive and deadly events in nature. Show more

Iain Stewart journeys across the oceans to explore stories about the most powerful giant waves in history, including how one caused the ruin of an entire ancient civilization. Show more

Iain Stewart reveals the stories and science behind some of the world's most dramatic earthquakes, including how 1960s Cold War spying gave scientists a clue to understanding them. Show more

Iain Stewart reveals ten remarkable stories about avalanches, including how the deadliest one killed 18,000 people in three minutes and why another solved an aviation mystery. Show more