Josh Gates travels to the Kingdom of Kush to dive the flooded pyramid tomb of a king; the murky water provides zero visibility, and the pyramid is at risk of collapse; the dive could unlock the mystery of a civilization that once conquered Egypt.

Josh travels to the Holy Land to find a lost city where Jesus performed many miracles and is also home to three apostles. While investigating competing sites that claim to be the lost city, Josh reveals an inscription that hasn't been seen in 1,400 years.