Air date: 2010-11-30

Runtime: 60 min

Iain Stewart tells the story of James Hutton, the founding father of geology. This Scottish thinker overturned ancient beliefs about how and when the world was formed.

Air date: 2010-12-07

Runtime: 60 min

Iain Stewart finds out how gung-ho geologist Edward Bailey discovered that Scotland was once home to super volcanoes. Plus the story of unsung hero Arthur Holmes.

Air date: 2010-12-14

Runtime: 60 min

In the final episode of the series, Iain Stewart finds out about daredevil scientist Louis Agassiz, who first imagined the world had been gripped by an ice age.