From a council estate in Birmingham to the most remote corners of the Earth, Martyn Stewart has spent his life recording the voice of the natural world. This series takes listeners on an epic yet intimate journey through wild places, vanishing soundscapes and the extraordinary life of the man behind the microphone. Along the way come danger, wonder, solitude and devotion - but at its heart, this is a love story: to the planet, to the act of listening, and to the fragile beauty of a living world we stand to lose.