Thirty years after her daughter disappeared, Lin Wanzhi died on a rainy night while pursuing false clues. When she opened her eyes again, she returned to the green train in 1996. Five-year-old Miaomiao was still beside her, and her husband was handing her a bottle of soda laced with medicine. She touched the red hairpin that her daughter had dropped, and saw the ten-second truth about the loss. In her last life, she lost her daughter and was blamed by everyone; in this life, she will stop the car on the spot to save her child and leave evidence for every lie she tells. Starting from an old table at the entrance of the train station, she and a group of ordinary women relied on tiger-toe shoes, old work badges, unsent letters and broken tickets to find people who had been misunderstood and whose names had been changed, and step by step they also pursued a missing network that had been hidden for many years. Ability can only give clues, and the real truth still needs to be found out through testimony, bills and timelines.