David Attenborough travels to the end of the earth, taking viewers on an extraordinary journey across the polar regions of our planet.

Dr Helen Czerski goes on a spectacular journey to the extremes of the temperature scale, where everyday laws of physics break down and a new world of scientific possibility begins.

Amidst spectacular landscapes of snow and ice, Mylène Saint-Sauveur introduces us to the inspiring men and women whose culture and way of life were chiselled by the harsh climate of the coldest regions of the planet.