Daring or madness? In a small rubber dinghy, full of supplies and camera equipment, Robert Neu sets out to sail the 3,185 km long Yukon River. With his ultra-light packraft he wants to cross the North American wilderness of Canada and Alaska, and paddle from the glaciers of the source lakes in British Columbia to the mouth of the windswept Bering Sea. This is followed by months of seclusion on and by the river, during which he only sporadically meets people - often native Indians and Yupik Eskimos. Otherwise he is thrown back on himself and leads a touching, original life in nature, which is characterized by simplicity, honesty and breathtaking silence. And from close encounters with beavers, moose, eagles and bears. Significantly, the greatest dangers for his adventure come from an arsonist and a knife stabber who want to destroy his rubber dinghy ... The rousing description of the realization of a lifelong dream - longing and campfire romance included!