Collection of two BBC nature documentary series. In 'Planet Earth II', a decade after the success of the original series which was the most expensive nature documentary ever commissioned by the BBC, David Attenborough returns to narrate another colossal project showcasing life on this planet. The series consists of six episodes, each focusing on a different habitat. The episodes are: 'Islands', 'Mountains', 'Jungles', 'Deserts', 'Grasslands' and 'Cities'. 'Blue Planet II', also narrated by David Attenborough, examines life beneath the world's oceans. The episodes are: 'One Ocean', 'The Deep', 'Coral Reefs', 'Big Blue', 'Green Seas', 'Coasts' and 'Our Blue Planet'.