Pushing on despite many setbacks, Ewan and Charley immerse themselves in the rich culture and their spirits are lifted by the beauty and kindness of the people of Mongolia. They know that the Road of Bones in Siberia (built by Stalin's prisoners) lies ahead and will surely test them further.

Ewan and Charley take in the wildlife in Alaska then head across the border into Canada and ride into the Yukon region. They meet the Firefighters tackling forest fires and a Welshman who takes them up in his aeroplane to view a glacier. After a visit to Calgary Funfair, Ewan is almost injured when a reckless driver causes a near fatal accident

The duo reach America and stop at a Harley-Davidson factory in Illinois. They drop in to meet the guys from OCC, and spend the night reflecting in a hotel before the final day. They are greeted with a triumphant arrival in NYC leading a convey of bikers.