On April 6, 2001, a gas explosion occurred in the Chenjiashan Coal Mine of the Tongchuan Mining Bureau in Shaanxi Province, killing 38 people. On November 28, 2004, a gas explosion occurred in the Chenjiashan coal mine, and 166 people were killed. Five years later, Lin Xin, the son of the miners, filmed this film about mine disasters. Through the oral interviews of more than 20 people, such as miners and family members of the victims, and random interviews on the street, the film presents the real life of the miners and the cruel and complicated social reality behind the mine disaster from different angles. This film is the end of Lin Xin's "Trilogy of Survival".