[Spy war + adaptation of real events during the white terror period + battle of wits + no system + high-end game]
In August 1949, Lin Huaiyuan, a former senior staff officer of the Ministry of National Defense, was ordered to cross the sea. His true identity was a sleeper codenamed "Secret Envoy No. 1." Hidden in the top-secret information he carried was a set of "double codes" that not only related to the situation on a certain archipelago in the southeast, but also touched upon a secret plan called "Fortress."
On the crisis-ridden island, he and his contact "Blue Bird" Zhou Jingqiu secretly built an intelligence channel, used the original "shadow book" system to transmit information, and started a thrilling deal with Shen Moyuan, the head of the security department. Due to the rebellion of internal personnel, the intelligence network suffered heavy losses. In a desperate situation, the two discovered the third secret of the code - there was actually a member of their own code-named "Pangolin" lurking inside the "Fortress".
In early 1950, Zhou Jingqiu's identity was exposed and arrested, and Lin Huaiyuan was also on the verge of despair. He made a surprising decision: take the initiative to contact Shen Moyuan and implement the final plan in the name of providing information. In June of the same year, gunshots were fired at a specific location, but the message he left behind was successfully sent. The situation on the southeastern islands therefore developed in the expected direction, and the radical tactics in the "Fortress" plan were effectively prevented.
Many years later, when researchers finally deciphered the last code he left, the last words about his family and country's faith traveled through time and were revealed - a past event about faith and choice. In the gaps of history, those nameless guardians have quietly affected the connection between the past and the future, focusing on their lives.