Archaeologists find extraordinary new evidence about how the ancient Egyptians prepared for the afterlife. We investigate the most elaborate tomb in the valley of the kings, built for the great pharaoh Seti I, the tomb reveals the sacred text needed to secure life after death. A vast necropolis gives up its secrets as a team discovers a sealed tomb untouched for 4,000 years. Whilst analysis of a gruesome cache of mummified remains reveals the disturbing lengths grave robbers went to in search of treasures and gold.