In 1952, a team of archaeologists discovered a Copper scroll in a cave high above the Dead Sea. It was classified as a Dead Sea Scroll. But this was no biblical text, it was a treasure map and the riches it listed are estimated to be worth $3 billion dollars. Over half a century on from its discovery mystery still surrounds the ancient manuscript. Who wrote it, whose treasure it was, and if it's still out there are questions to be explored by experts on a tour of the Holy Land, to Egypt and to Rome, to solve the greatest treasure hunt ever set.