At Pearl Harbor, Captain Matt Garth is tasked with gauging the progress of decryption efforts at Station HYPO, headed by Commander Joseph Rochefort, which has partially cracked the Japanese Navy's JN-25 code, indicating that a major operation will soon take place at a location the Japanese refer to as "AF". Garth is also asked by his son, naval aviator Ensign Tom Garth, to help free his girlfriend Haruko Sakura (Christina Kokubo), an American-born daughter of Japanese immigrants, who has been interned with her parents, by calling in favors with law enforcement to have the charges against the family dropped. Yamamoto and his staff present their plans for Midway to the commanders who have been chosen to lead the attack - Admirals Nagumo and Yamaguchi of the Japanese carrier force and Admiral Kondo of the invasion force.