Geologist Iain Stewart retraces the steps of a band of maverick pioneers who made ground-breaking discoveries in the landscape of Scotland about how our planet works.Episode guide-
Deep Time
1/3 Iain Stewart tells the story of James Hutton, the founding father of geology.
Moving Mountains
2/3 Iain finds out how geologist Edward Bailey discovered Scotland once had super volcanoes.
The Big Freeze
3/3 The story of Louis Agassiz, who first proposed that the earth had experienced an ice age.