A cold odyssey over more than 8,000 km through contrasting territories, from the mountains of Mongolia to Lake Baikal, from the taiga to the Siberian tundra: this is the challenge that Nicolas Vanier set himself. The adventure will last 18 months, 18 months during which Nicolas and his team face one of the most hostile regions of the globe before reaching the Arctic ice. An exceptional journey, where only traditional modes of transport are used to overcome the constraints, each time different, of the regions crossed.—MC4