Simon Reeve journeys 25,000 miles, trekking through rainforests, climbing active volcanoes and travelling through war zones on his way around the equator. He catches malaria in Gabon andstruggles on through the war-ravaged Democratic Republic of Congo, goes rafting on the source of the Nile and witnesses a bullfight in Kenya. His journey ends in the desert on the Somalian border where thousands of refugees have escaped the fighting in their homeland.

The last stretch of his journey begins in the Galapagos Islands, where Simon comes face-to-face withsome of the most beautiful and unique wildlife on the planet. He then climbs to the top of an active volcano in Ecuador that threatens to blow at any time. He journeys across war torn Colombia, where an army escort puts them at risk from rebel attack. He meets an Indian tribe that have their own incredible monument to the Equator, and his journey ends in Brazil, where he travels through the Amazon rainforest before ending his trip with an attempt to surf the world's longest wave.