In 1975, Lu Cheng, a policeman from the Railway Bureau, was unexpectedly reborn and returned to the turning point of fate with the memories of his past life. He saw through the scam of Green Tea Li Huiying and kept his iron job. With his later experience, he solved the cases of theft gangs and enemy agents on the train, and made many meritorious deeds. At the same time, he protected his relatives and friends from danger, completely rewritten his tragic life, and started a counterattack.
