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.