The makers of Deep Blue embark on a fascinating journey across the Earth, from north to south and through the four seasons, to portray the contrasts between different parts of the planet and its natural transformations. The documentary shows the survival conditions of species such as the polar bear, the African elephant and the humpback whale, all facing climate change, and their natural behaviour, at times with highly comic moments. An epic work produced by the BBC, shot with the finest high-definition cameras over five years in more than 200 locations and 26 countries.
