Simon Reeve continues his epic journey around the world following the Tropic of Cancer, the northern border of the tropics region. The second leg of the journey sees Simon dodge the Moroccan secret police in Western Sahara, travel on one of the world's longest trains in Mauritania, visit a forgotten refugee camp in the Algerian desert where more than 100,000 people live, and take a swim in a Libyan oasis with a government minder who bears an uncanny resemblance to Colonel Gaddafi. After travelling around the Tropic of Capricorn and the Equator, this series completes Simon's trilogy of journeys exploring the amazing tropics region with his toughest, longest, most ambitious challenge yet.

Simon Reeve continues his epic journey around the world following the Tropic of Cancer, the northern border of the tropics region. Simon rejoins the Tropic of Cancer in Egypt and follows it through Saudi Arabia, Dubai and Oman. In Southern Egypt, next to the ancient temple of Abu Simbal, Simon meets Nubians struggling to maintain their culture following the damming of the Nile and dives in the pristine reefs of the Red Sea. In Saudi Arabia he goes racing with the Jeddah Boyz; and in Dubai he meets construction workers suffering in the economic downturn and he watches as rare baby green giant turtles start their own epic journeys as they head into the Arabian Sea from the beaches of Oman.