Lin Yao, a young undercover agent who was wrongly involved in the spy network because his family was wronged, grew up in the world of espionage with humor and optimism. He is constantly making choices on the edge of life and death and in the battle of trust: faith and desire, betrayal and redemption, family affection and love are intertwined. Together with the double agent Jiang Manman, the veteran agent Sanke, and the "wise as foolish" Zhou Ye, they jointly fight against the gentleman leader Quasimodo. As Li Yunshu's identity is gradually revealed, the spy war situation becomes more and more tense. Under the intertwining of humor and humanity, Lin Yao grows into a true legendary agent, interpreting the ups and downs of life and death game along the way, and will eventually usher in the ultimate trial of trust and the final answer to the family mystery.
