When the Great Northeast Blackout of 1965 hit, millions of people were left in the dark, including Waldo Zane, a New York executive in the process of stealing a fortune from his company, and two people whose paths he's destined to cross, Broadway actress Margaret Garrison and her husband, Peter

沃尔特·米蒂 (Walter Mitty) 是一位有着过度保护母亲的白日梦低俗小说作家，他喜欢把自己想象成一个经历奇幻冒险的英雄。当他偶然遇到一个神秘的女人并递给他一本小黑书时，他的梦想成真了。据她说，它包含自二战以来隐藏的荷兰皇冠珠宝的位置。很快，米蒂发现自己陷入了一个令人困惑的阴谋之中，不得不承认，在现实生活中成为英雄并不容易。