The TV series "Decryption" is adapted from the best-selling novel of the same name written by writer Mai Jia in 1991. The story revolves around the mathematical genius Rong Jinzhen cracking the super codes (Purple Code and Black Code). In the early days of the founding of New China, Country X sent a spy organization headed by code-named "Awakener" to infiltrate my country and use the advanced code code-named "Purple Code" for communication, causing serious damage to my country's national defense construction. Special unit 701 Zheng Dang and others were ordered to search for all kinds of geniuses across the country to add fresh forces to decipher the "Purple Code" and even the "Black Code" representing the highest level of intelligence. Rong Jinzhen and others, who are "fool geniuses" with special mathematical talents, were discovered and entered 701, and a secret and great legendary story unfolded slowly. Rong Jinzhen and others not only have to decipher a code like a heavenly book, but also the "life secrets" of the "701 people" - including the secrets of their life experience, destiny, personality, and feelings. Everyone has their own mission and secrets in their hearts. Because of the same belief and goal, they work hard to prove the value of the unsung heroes of the Republic. This film is adapted from the novel of the same name by the famous writer Mai Jia.