Jonathan Dimbleby returns to Africa after four decades of reporting from the continent, covering 7,000 miles to see how it has changed. He starts in Bamako, Mali, and follows the Niger river to watch men free-dive 20 feet to dredge building sand, then apprentices himself to a 74-year-old mud mason in Djenne, a town built entirely of mud that has sustained an urban society for 1,600 years. In Ghana he plays golf with the King of the Ashanti and sits in on the king's court to see how traditional structures handle disputes. In Lagos, Africa's richest man flies him by private jet over a city usually filmed only for its crime, and he meets musicians shaping the city's cultural scene. Later legs take him through Ethiopia, where he was the first journalist to report the 1973 famine, and into Kinshasa, where he rides with the band Staff Benda Bilili and finds a Mozart-playing orchestra amid the city's sprawl.