Four years in the making, and spanning 31 countries across the globe, this grand-scaled and remarkable BBC One nature offering hosted by David Attenborough spends each of it's five chapters giving focus to a different force of nature and how the Earth and it's environment has been, and is being, shaped by same-volcanoes, the sun, weather, oceans and humans. The spectrum of animal species covered, and how they've adapted for survival, are wonders to behold. Widescreen; Soundtrack: English. 5 hrs. On 4 discs.