WWII American Army Medic Desmond T. Doss, who served during the Battle of Okinawa, refuses to kill people and becomes the first Conscientious Objector in American history to receive the Congressional Medal of Honor.
Mr. Miyagi and Daniel take a trip to Okinawa to visit Mr. Miyagi's dying father. After arriving Mr. Miyagi finds he still has feelings for an old love. This stirs up trouble with an old rival who he originally left Okinawa to avoid. In the mean time, Daniel encounters a new love and also makes some enemies.