Sir David Attenborough reveals how humans are helping plants, many of which face extinction. From projects in Africa to re-seeding the landscape to rebuilding a Brazilian rainforest tree by tree, everyone can work to make our world a little wilder.

Sir David Attenborough travels the globe to reveal the secret lives of plants. Using pioneering camera techniques, the series takes viewers on a magical journey inside the hidden world of plants, on which all animals—including humans—are dependent.