Michael Palin's latest journey is across the Sahara desert, a place of romantic, almost magical appeal. Although famous as a geological location, its life, landscape and rich history are not so well-known. Periods of difficult travel will be repaid with new sights and sounds, people, languages, food and customs. The emphasis will be on Michael Palin's interaction with the people he meets, and on stretching him and his team as they undergo this arduous expedition.