The 12-episode series follows Wang Xiang, an ex-train driver who had worked his whole life at the steel plant in a fictional small town in North China, as he attempts to solve the mystery behind a brutal murder during the autumn of 1998. For more than 20 years, the murder has haunted him and other people who worked at the steel plant as they struggled to come to terms with the loss they’ve experienced.
In the small town of Hualin, taxi driver Wang Xiang had the chance to meet the person he both most wanted and feared to encounter in his life. Meeting this person would require an explanation, for himself and for his son.
Wang Xiang was full of confidence as a train driver, but struggled with the trivialities of his own small family. The factory was on the verge of collapse, and the discovery of an unidentified dismembered body struck Wang Xiang's mind.
For twenty years, Wang Xiang was trapped in three different eras, chasing after the truth that crossed the past, present, and future, all to solve an unsolved mystery. When the answer was finally revealed, time and space merged into one, and only the dirge of fate remained in the long seasons.