The geneticist Adam Rutherford explores how indigenous stories of the natural world are entangled with scientific understanding of the environment. He’s joined by Robin Wall Kimmerer the botanist and Native American, and author of Braiding Sweetgrass. The ecologist and hedgehog expert Hugh Warwick investigates the thorny issue of invasive species, and killing in the name of conservation, while the writer Olivia Laing goes in search of a garden sanctuary, and the long, and sometimes troubled, history of making paradise on earth.