Unearthing new evidence about Ramses the Great, Egyptologists believe they've found an amazing tomb from his time. Plus, in the tomb of Ramses' architect, the team discovers a burial chamber piled high with ancient mummies.

Archaeologists study the mysterious pyramids that followed the Giza pyramids. They unearth new tombs and chambers to uncover their beguiling story. Among the gems in this episode is an excavation of the long-lost tomb of pharaoh Sahure at Abusir — Egypt's only pyramid tomb yet to be explored.