In the late 1970s, on the steam train from Ningyang to Harbin, a young police officer Wang Xin is on duty and shuttling among crowds of passengers. He mistakes an old railway policeman Ma Kui as a fugitive, and their conflict gradually develops into a mentor-and-apprentice friendship. From disliking each other to sympathizing with each other, Wang Xin and Ma Kui fight side by side on the front line of railway public security. They crack down on theft, kidnappings, drug trafficking, and fraud, a…
In the late 1970s, on the steam train from Ningyang to Harbin, a young police officer Wang Xin is on duty and shuttling among crowds of passengers. He mistakes an old railway policeman Ma Kui as a fugitive, and their conflict gradually develops into a mentor-and-apprentice friendship. From disliking each other to sympathizing with each other, Wang Xin and Ma Kui fight side by side on the front line of railway public security. They crack down on theft, kidnappings, drug trafficking, and fraud, a…