Admiral Isoroku Yamamoto (1884-1943) was the Japanese Naval commander who was given the order to attack Pearl Harbour, an order he was duty bound to obey which went against his own personal beliefs. While this infamous attack is a low point in Japanese and US history it wouldn’t have happened if the Japanese government had listened to Yamamoto in 1939 and searched for a more peaceful way to end their war campaign, proving his many ominous presages of the outcomes of the attack to come true.

泡沫经济时期（1992年），背负着悲惨过去的庆应大学毕业生半泽直树如愿进入产业中央银行就职。银行内部有着“旧东京”与“旧产业”派系斗争。这一年，半泽直树就任东京中央银行大阪西分行融资课课长已有两年。坚信人性本善的他在履行银行家职责的同时坚守着普世的道义。半泽能否凭一己之力改变这冷漠腐化的现状？他能否对抗银行内外的敌人、贯彻自己的信念？