Narrated by John Hurt and following in the footsteps of Planet Earth and Life, this epic eight part blockbuster is a breathtaking celebration of the amazing, complex, profound and sometimes challenging relationship between humankind and nature. Each week the series focuses on a particular habitat and reveals how its people have created astonishing solutions in the face of extreme adversity. In episode one, Arctic, the temperature is sixty degrees below zero. It is the harshest environment on Earth, yet four million people manage to survive in the Arctic. This film follows a year in the human freezer.