Every episode from the BBC documentary series which showcases life on planet Earth, narrated by David Attenborough. Made a decade apart by the BBC Natural History Unit, each series was the most expensive nature documentary ever commissioned by the BBC at the time. Each episode focuses on the planet's many different habitats and explores some of the unique occupants and wildlife native to each whilst chronicling their struggle to survive. 'Planet Earth' episodes are: 'From Pole to Pole', 'Mountains', 'Fresh Water', 'Caves', 'Deserts', 'Ice Worlds', 'Great Plains', 'Jungles', 'Shallow Seas', 'Seasonal Forests' and 'Ocean Deep'. 'Planet Earth II' episodes are: 'Islands', 'Mountains', 'Jungles', 'Deserts', 'Grasslands' and 'Cities'.