Episode director Hu Yudi recalls her first communication with Cao Haiyan, the wife. "She said: 'Many people regard truck drivers as crude and look down upon us, but if we do not travel day and night, how can people in North China eat fresh fruit from Sanya, South China's Hainan province? Of course, we work for money, but we make a contribution to society.'"

During the long and tiring journey, the husband Tang Jijun only slept intermittently for about four hours, and Cao was responsible for communicating with cargo receivers, and solving problems on the way.

"I'm impressed by the detail of their cooperation, like Cao massaging Tang, reading jokes and preparing fruit to cheer him up when Tang was sleepy or tired. It not only shows the difficulties of the job, but also their perseverance in trying to fulfill their duty," says Qin.

"Everyone hopes to be content in their job, but in reality, most people are struggling and are far from realizing their dreams. But, I still believe the process of working hard to create a better life is the most precious thing," he adds.