The episode starts with Palin crossing the Sénégal River, leaving Mauritania and entering the town of Saint-Louis in Senegal. He has left Arab Africa and entered Black Africa, and the French influence, from the colonial past, is strongly felt here. He interviews the artist Jacob Yakouba and his soap-opera-star wife Marie-Madeleine, talking to them about polygamy, which is prevalent here. Palin also visits Gorée Island, the main departure point for black slaves sold to America. Palin moves on to...