Iain Stewart tours the Pacific rim to discover how the rocks beneath our feet have shaped human history. He visits the world's most awesome volcanoes in Indonesia.

Iain Stewart tours the spectacular landscape of the Pacific Rim and questions why Californians are prepared to live with potentially disastrous earthquakes and firestorms.

Iain Stewart tours the perilous and spectacular landscape of the Pacific Rim, visiting Japan to see how the huge population live on small strips of coastal plain.