Tim Taylor and his team are searching for a U.S. submarine that disappeared in 1944 off the coast of Japan with 80 sailors on board. As the remotely controlled underwater vehicle searches under the depths, however, it frustratingly develops a fault. So, Taylor brings the craft back to the surface and takes a glance at the data that it’s recorded. Then he spots two anomalies, which prompt him to send down yet another probe. And what the technology unearths is enough to make the hairs on your arms stand on end.
The sub that the researchers and technicians were searching for was the U.S.S. Grayback, or S.S.-208 as it was less lyrically known. And this salvage operation was carried out on behalf of the Lost 52 Project, which is dedicated to locating the 52 U.S. submarines that disappeared in the Second World War. The U.S. Navy had previously posted Grayback as missing in late March 1944.