On July 27th, 1943, a U.S. patrol plane spots the German U-boat U-513. With no time for the vessel to dive: 2 bombs hit, and only 7 men survive. Until now, the final resting place of U-513, and what exactly happened to it, has remained a mystery. The adventurer Vilfredo Schürmann managed to locate the wreck, allowing us to piece together the puzzle of the U-boat's final mission and grisly end.