Lin Xiao was originally an ordinary young man who accidentally got involved in the Chinese and foreign spy wars and was forced to become a double agent. He dealt with the National Security Bureau and enemy intelligence organizations, used humor to resolve crises, and repeatedly sought victory in danger, but was repeatedly hurt by betrayal. Zhao Yin gradually discovered Lin Xiao's true identity and cooperated with him. Together, the two solved multiple traps and exposed the enemy's conspiracy. Su Mingzhe constantly challenges Lin Xiao's bottom line, Huang Da provides him with loyal support, and Wolfe, as an intelligence dealer, provides multiple secret information. The three volumes respectively describe the revelation of identity, the showdown of intrigues, the belonging of faith and the final redemption. The story has many twists and turns, the plot is tense and humorous, and the truth progresses layer by layer. In the end, Lin Xiao chose faith, abandoned interests, resolved the crisis between the two countries, and grew into a true wise man and warrior.