In the year 200X, a Japanese fleet consisting of 3 vessels leave on a mission to South America. After encountering a storm, the ship JDS Mirai find themselves without their escorts and in 1942, traveling towards the island of Midway to face the American fleet in one of largest battles in naval history. The crew of MIrai must decide whether or not to change the course of history by involving itself in WWII.

In the year 200X, a Japanese fleet consisting of 3 vessels leave on a mission to South America. After encountering a storm, the ship JDS Mirai find themselves without their escorts and in 1942, traveling towards the island of Midway to face the American fleet in one of largest battles in naval history. The crew of MIrai must decide whether or not to change the course of history by involving itself in WWII.