War has been declared. The supernatural group Yamata no Orochi controls Imperial Japanese forces as the country drags the United States into World War II. Commander Isamu Mori seeks to collect a broken Infernal Artifact scattered across the Pacific Ocean necessary to execute his sinister plan. His followers dispatch a secret agent to recover a piece lost during the bombing of Pearl Harbor, resulting in a shocking discovery that the United States may have otherworldly allies of their own...