In a city where Eastern and Western espionage networks intersect, ace agent Zhou Yi is involved in a seemingly simple intelligence transfer, but unexpectedly discovers that there are multiple structures and suspenseful human mysteries hidden behind it. Together with Lin Yan, who is good at analysis, Lao Tang, who is experienced, and a series of agent partners with different styles, he responded wittily and laughed a lot while being heavily pursued by the enemy. With the emergence of rival Feng Rui, the battle between light and darkness accelerates, and trust and betrayal take turns. Each volume reveals a layer of truth, and every life-and-death moment is accompanied by unexpected turns. In the intertwined struggle of friendship, love, responsibility, and faith, Zhou Yi and Lin Yan gradually grew up. In the end, when the dust settles, everyone faces their own choice and redemption, showing another kind of humor and warmth in the spy world.