At the age of 23, Ash Dykes became the first person to walk, solo and unsupported, across Mongolia.His journey took 78 days and saw him trek over the Altai Mountains, the Gobi Desert and the Mongolian Steppe. It was an expedition filled with danger and extreme conditions. He almost didn't make it. Two years later he spent more than five months traversing the length of Madagascar, another world first. In Mission Possible, Ash reveals the spirit, planning, and sheer determination that went into these two record-breaking feats. Along the way we discover how a young man from Wales transformed himself into one of the globe's most acclaimed and exciting young adventurers.