他，出生于嘉定，是一位极具有传奇色彩的爱国外交家，在风雨动荡的年代，在世界强国面前为维护中华民族权益据理力争。他曾说：“当国家征召我时，我就是一名战士，义无反顾。”九十七岁高龄之际，题字“露从今夜白，夜是故乡明”。他，就是中国人心中的骄傲——顾维钧。

Based on the real life story of legendary cryptanalyst Alan Turing, the film portrays the nail-biting race against time by Turing and his brilliant team of code-breakers at Britain's top-secret Government Code and Cypher School at Bletchley Park, during the darkest days of World War II.

Hours after the tragic death of their youngest brother in unexplained circumstances, three siblings have their lives thrown into chaos.