Cloudy Mountain

When a ten-year-old tunnel is about to be completed, affected by global geological changes, a series of geological disasters such as ground fissures, earthquakes, landslides, mudslides and so on are coming. The tunnel and the entire county are at stake. Lao Hong Xiao Hong, the father and son came forward in desperate situations. How did they survive this life-and-death crisis with 160,000 people?