For four weeks we travel in the footsteps of Simon Reeve along the Tropic of Capricorn, a fictional line along countries with often very real problems, but also with a vibrant culture and stunning nature. The Tropic of Cancer is located just over 23 degrees south of the Equator and forms the southern boundary of the tropics. He walks through some of the most remote and unknown regions in the world. Along this imaginary southern belt around the Earth, Simon Reeve follows a course through Africa, Australia and South America.