Ooooooo a spoke too soon, its already on UK Nova, apparently it was a "Polar Special".
Jeremy Clarkson, James May and Richard Hammond are racing to the North Pole, Jeremy and James are in a specially adapted pick-up truck and attempt to race from Northern Canada to the North Pole, while Richard is on a sled pulled by a team of huskies.
Think I will download it and have a gander hehe.