The Fulgur 01-03

1907. Further to a terrible storm, a ship navigating in the Yucatán Channel sinks in an Oceanic trench with a billion dollars of pure gold in its holds. Three years later, a bold group of explorers and treasure hunters embarks aboard the Fulgur, a unique submarine, to find the lost cargo. But their adventure, diving to depths as great as 4,000 meters, is about to take a dramatic turn and defy all comprehension!