Martha Kearney explores the importance of the natural world in the lives of her guests.

Each person she meets takes her to a location which means something to them, and describes the role nature has played in their life, explaining how it has shaped, influenced or fascinated them.

In the process she gains surprising new insights from some well-known faces - from Cate Blanchett, who talks about her love of bee-keeping, to Martin Clunes, who takes Martha on a walk with his five dogs before rolling up his sleeves to scrub his horse's hooves in preparation for the village show. Delia Smith, James Dyson, Adjoa Andoh and Hugh Fearnley-Whittingstall are all on Martha's guest list.

This series celebrates the power and mystery of the natural world, and finds reasons to be optimistic about its future.