Incense was the principal source of the wealth and power of the three ancient kingdoms of Saba, Qataban and Hadramawt which now form Yemen. This documentary travels through the country's dramatic landscape, visiting important points on the route once travelled by the caravans that carried the precious resin to market. It reveals what is known of Yemen's distant past and glimpses present day life there, which remains largely untrammeled by the trappings of the modern world. Directed by Alain Jomier.