Secrets of the Mega-Tomb

S1 E1: It began with the discovery of a giant coffin while excavating a burial chamber near Egypt's famous Step Pyramid. But further digging opened an underground labyrinth, a mega-tomb with over 100 coffins filling every inch of space. Burying all these people must have required a massive operation... so who was behind it? Filmed with unprecedented access, we join archeologists as they make each groundbreaking find, and follow them on their mission to solve a 2,500-year-old mystery that could change what we know about Egyptian history.