Alistair Humphreys cycled around the world�a journey of 46,000 miles. This inspiring story traces the second leg of his travels�the length of South and North America, the breadth of Asia and back across Europe, crossing the mountains and salt-flats of South America, canoeing the Five-Finger Rapids of the Yukon River, and braving a Siberian Winter with only the flimsiest tent to protect him from the elements.