It’s Independence Day, 1942, and a brand new sub, U.S.S. Grunion, sets sail from Midway for her first combat mission with 70 men aboard. The crew are doubtless hopeful that July 4th is an auspicious date to go to war against the Japanese enemy. But, at the end of July, their tour is to have the worst ending possible. Somewhere in the Bering Sea the Grunion and her crew of 70 disappear. And it would be decades before their fate was revealed.
After she’d weighed anchor from a spot just off the Hawaiian island of Midway Atoll, U.S.S. Grunion had set sail for what was called area Bulldog in wartime. Her mission was to cruise the seas between Japan and the island of Attu, part of the Aleutian archipelago. As she patrolled, she would be keeping a close look out for any enemy shipping she could attack.