When it sank in the deep Atlantic during World War II, the Japanese submarine I-52 went to the bottom with over 100 lives and cargo that included two tons of gold. Now, a military veteran-turned-adventurer bucks the odds on a long-shot mission to solve a tantalizing mystery more than 50 years old, as he embarks on a deep-see search for a lost submarine and its cargo of gold. Plunge three miles to the ocean floor, and explore the sub's
