World War II was the largest and deadliest conflict in human history. From 1939 until 1945, more than fifty nations engaged in harrowing combat, and while the Axis Powers were eventually defeated, plenty of mysteries emerged from the rubble. For instance, is there an armored train filled with Nazi gold deep in the tunnels of a Polish castle? And how did one man survive not just one atomic bombing, but two? Is it possible that a strange presence roams the area of the deadly surprise attack on Pearl Harbor?

The fascination with lost treasures has captured mankind's curiosity for centuries, and new evidence and research have led many across the globe in the quest for vast riches. Do the lucrative spoils of the legendary pirate Blackbeard lay buried on an island off the North Carolina coast? And can a lost cache of gold and silver ever be recovered from the deadly Superstition Mountains? Will we finally solve the Beale Cypher, and crack open the hidden vault revealing his hidden fortune?