Nathan Algren is an American hired to instruct the Japanese army in the ways of modern warfare, which finds him learning to respect the samurai and the honorable principles that rule them. Pressed to destroy the samurai's way of life in the name of modernization and open trade, Algren decides to become an ultimate warrior himself and to fight for their right to exist.

After more than thirty years of service as one of the Navy’s top aviators, and dodging the advancement in rank that would ground him, Pete “Maverick” Mitchell finds himself training a detachment of TOP GUN graduates for a specialized mission the likes of which no living pilot has ever seen.