Archaeologists unearth a long-lost box of treasures from inside Tutankhamun's tomb; new technology reveals why this boy king's resting place remained hidden from tomb robbers for thousands of years in the Valley of the Kings; a team is tasked with transporting Tut's treasures; archaeologists open a 4,000-year-old tomb.

Archaeologists hunt for the lost tomb of Cleopatra. One team dives the sunken city of Alexandria, and an explorer unearths a secret underground tunnel. A team takes mummies to the hospital to scan for hidden treasure. An archaeologist discovers a secret tunnel network at a forgotten temple.