In the shadow of Saqqara's famous Step Pyramid, Egyptian archaeologists make a once-in-a-lifetime discovery: a 2,500-year-old mega-tomb, filled with over 100 coffins from nearly every era of Egyptian history. Who is buried here and why were they buried together? Filmed with unprecedented access, we descend thousands of years into the past to piece together the evolution of the Egyptian attitude to death and burial-from tomb building, to mummification, to funerary equipment, and funerary texts-and refine our knowledge of this ancient civilization.