October, 1942. The United States and the Empire of Japan are at war.
Charlie Harrison, a young and ambitious lieutenant, reports for duty aboard the S-55, a worn-out WWI-era submarine. While the Battle of Guadalcanal rages on land, air, and sea, the captain plans a daring attack against Rabaul, the heart of Japanese power in the South Pacific. There, the hunter will become the hunted, and Charlie will discover how good he is at war.