Tobi revisits an old childhood riddle: Who leaves the deepest traces in the earth? His search takes him to places like Madagascar, Spitsbergen, and Mexico, where he uncovers what connects them and finds the answer he was missing as a child.
Overview：Tobi revisits an old childhood riddle: Who leaves the deepest traces in the earth? His search takes him to places like Madagascar, Spitsbergen, and Mexico, where he uncovers what connects them and finds the answer he was missing as a child.
