Polar explorer, author and philosopher Erling Kagge was the first person ever to walk alone to the South Pole and to surmount the 'three poles': North, South ant the summit of the Mount Everest. Now he explores New York like never before-underground.
Along with Steve Duncan, he descends into the network of sewers, subways and water tunnels that the city has to offer-all the way from The Bronx via Manhattan to the Atlantic Ocean. The account of their journey opens a world that has never been explored before.