In "The Last Train Home," it documents the Zhangs' journey from Guangzhou to their home village for Chinese New Year. Their close relationship with Qin is evident because she is happy they bring her a cell phone and gets along well with her parents. Their desire to leave their children behind in the village is because they wanted to be free to have an easy life in the city. The Zhangs' upward mobility from factory workers to real estate rental owners is also highlighted.