The story is set in the troubled times of the Republic of China, where foreign enemies invaded, the domestic situation was turbulent, and all forces were intertwined. Underground intelligence work has become a key area of secret competition between all parties. Countless patriots have devoted themselves to it. In order to protect national secrets and deliver important information, they have launched thrilling life-and-death games with the enemy without gunpowder. Lin Mu Sheng and Shen Yanqiu are heroic warriors active on this secret front. With their loyalty and love for the country, and their extraordinary wisdom and courage, they bravely move forward in the wave of espionage, writing their own passionate legend. At the same time, they also have deep and sincere feelings between them, which becomes the source of strength for each other to persevere.
Intent: The heroic responsibilities and historical role of little people in the big era