Sir David Attenborough gives his unique perspective on over half a century of innovation in wildlife film-making - developments that have brought ever more breathtaking and intimate images of wildlife to our television screens, changing our view of life on the planet forever.

Sir David Attenborough reflects on the dramatic impact that humankind has had on the natural world within his own lifetime. He tells the surprising and deeply personal story of the changes he has seen, of the pioneering conservationists with whom he has worked - and of the global revolution in attitudes towards nature that has taken place within the last six decades.