Jiang Qing and Ye Fan are neighbors, and they were admitted to the police academy together. Their original intention was to guard the city, but little did they know that a life and death situation was approaching them quietly. The lonely figure at the beginning proves everything. On the train bound for his hometown, Jiang Qing is "not qualified". The train in his hometown keeps moving forward, and the beauty of the city keeps renovating, but the person in his heart can no longer be seen.
Intention: growth