National Secret 2

This film (drama)Also known as国家机密2，is aMainland ChinaProducerbeauty live，At2008Released in year 。The dialogue language isMandarin Chinese，Current Douban rating7.8(For reference only)。

A piercing phone ringtone jolted Lin Yunfei awake from his dreams. A frantic voice from Deputy Section Chief Dong Zhichao came through the line: "Engineer Qin from the Eighth Institute has lost a confidential document bag containing important research projects at the train station. This matter has attracted high attention from the upper management; you need to rush to the Railway Public Security Bureau." When Lin Yunfei arrived at the bureau with investigator Cao Yang, Dong Zhichao informed him that the police had already solved the case—it was an ordinary theft, and Lin Yunfei was to assist with the wrap-up. While watching the interrogation video of the thief, Lin Yunfei noticed a flaw and quickly reported it to Director Hong Zicheng. With his rich investigative experience, Director Hong sharply realized that this could likely be a case of espionage and decided to take over the investigation, swiftly implementing measures. During the identification and investigation of relevant personnel from the Eighth Institute, Zhang Quan emerged as a major suspect, but just as they were about to interrogate him, Zhang Quan was suddenly murdered. After examining the scene and questioning witnesses, three possible suspects for Zhang Quan's murder were detained and interrogated, but all three seemed logical in their responses and had no motive for killing Zhang Quan. At this moment, the upper management reported that the stolen intelligence could be automatically transmitted via satellite within 48 hours. Time passed second by second, and the case showed no progress. Lin Yunfei proposed a bold idea... Just as the stolen intelligence was about to be automatically transmitted, Lin Yunfei employed special investigative methods, forcing the foreign spy codenamed "Faceless Man" to confess. External reconnaissance agents successfully intercepted the stolen intelligence. Just as everyone celebrated their victory, unexpected news arrived: an important research plan from another key national aerospace institution in the city—the Power Institute—had been leaked abroad... During an analysis meeting about the case, Director Guan brought in the young female investigator Shi Hui and announced her as the new head of the investigation section, responsible for the case task force's investigative work. This left the two motivated deputy section chiefs, Lin Yunfei and Dong Zhichao, baffled. To facilitate the solving of this case, the department decided to send Lin Yunfei into the Power Institute as the deputy director of the office for tracking and reconnaissance. Using his position, Lin Yunfei conducted thorough inspections of all important departments, key locations, and significant personnel within the institute but found no suspicious circumstances. At this point, Shi Hui suggested a comprehensive security check across the entire institute, and to their surprise, they found that the K1 rocket fuel sample was missing, with no leads. Lin Yunfei felt immense guilt for the loss occurring right under his nose and reflected on every detail at the Power Institute, suddenly recalling a significant individual. Lin Yunfei proposed an unimaginable bold hypothesis—that the engineer Yuan Zhifang from the Power Institute might be stealing. After meticulous investigation and analysis, Lin Yunfei's idea was confirmed: Yuan Zhifang, for the sake of his son, had reluctantly engaged in actions harmful to the nation, revealing a foreign spy group codenamed "Diana." The task force acted decisively, capturing the suspected spies and intercepting the K1 sample at the airport. During the examination of the sample, they discovered that half of it was missing... It became clear that there must be a more dangerous figure behind "Diana," and identifying this person was crucial to solving the case. As the investigation deepened, a mysterious woman appeared in the agents' sights. This person was Jin Meng, the chairman of TTC Company, with whom Lin Yunfei had previous interactions. Investigation revealed that Jin Meng had joined a spy organization from Country A while abroad and established TTC Company in the city during China's reform and opening-up period, aimed at stealing high-tech intelligence from the country. This TTC Company was likely a crucial site set up by foreign spy organizations. Jin Meng was particularly interested in Lin Yunfei’s connection to a "Vice Governor" relative and was keen to recruit him to work at TTC Company. In response, Shi Hui suggested sending Lin to infiltrate TTC Company for near-enemy reconnaissance. The foreign spy organization instructed Jin Meng to conduct a thorough examination of Lin Yunfei, even resorting to the assassination of Shi Hui to test him. With close cooperation from Shi Hui and other investigators, Lin Yunfei successfully navigated one crisis after another and gradually gained Jin Meng's trust, although the security chief Wang Yuelong remained wary of him. Just as Lin Yunfei was smoothly advancing his work at TTC Company, the formula for the K2 rocket fuel sample from the Power Institute was stolen again...