The Step Pyramid of Saqqara, in the desert south of Cairo, is a keystone in the history of civilisation, but it is falling apart, ravaged by looters, earthquakes and the erosive force of 4,600 years. This documentary follows a team of British and Egyptian experts working to rescue this prototype for all the Egyptian pyramids, with efforts focused on the burial chamber of Pharaoh Djoser - the ceiling of which was found to be in imminent danger of collapse, threatening the future of the site.