It is the last great mystery of WWII. The fabled Yamashita Treasure, a massive stash of gold bars and rubies worth billions, reportedly dumped in a cave by Japanese soldiers retreating from allied forces. While the fortune has become a legend, many experts claim there is no evidence it ever existed. Now, a dedicated group of investigators are resurrecting the dangerous search, using cutting-edge technology in pursuit of the truth, and unimaginable wealth.