Part one of three. In one of their most ambitious challenges, Jeremy Clarkson, James May and Richard Hammond attempt to race from Northern Canada to the North Pole, a 450-mile journey. The terrain in between is some of the toughest on earth, composed of mountains and jagged sea ice. Temperatures can drop to minus 65 degrees Celcius, and polar bears are an added threat. While Jeremy and James drive in the comfort of a specially adapted pick up truck, Richard travels on a sled pulled by a team ...