The story takes place over a 24 hour period. In the southernmost part of Japan, 20 fishing boats of an unknown nationality suddenly fire upon and occupy parts of the Hateruma archipelago. Members of the Japan Coast Guard are detained. Under the extremely tense situation, the Japanese government sends Aircraft Carrier Ibuki and an escort fleet to the area. Ryota Akitsu is the captain of the Aircraft Carrier Ibuki and Toshiya Niinami is second-in-command. It is now 6:23 am. and Japan faces one day which they never have before.
西島秀俊
as Ryota Akitsu, Captain of Ibuki
本田翼
as Yuko Honda, (Net News P-Panel reporter
佐藤浩市
as Prime Minister Keiichiro Tarumizu
佐々木蔵之介
as Toshiya Niinami, Second-in Chief of Ibuki
村上淳
as Kazuhisa Nakane, Senior Officer of Ibuki
藤竜也
as Commander Tsugeharu Yui
戸次重幸
as Commander Shin Fuchigami
市原隼人
as Yohei Sakomizu, Captain of Albatross
玉木宏
as Nariaki Seto, Captain of Hatsuyuki
片桐仁
as Kazuma Todo, Senior Director of Yuko Honda
小倉久寛
as Veteran reporter Shunichi Tanaka
中井貴一
as Keiichi Nakano, convenience store manager
