Feng Bao plot
"When a catastrophe comes, no one should be left behind."
Yizhou teams up with his girlfriend, Yajun, on a dangerous construction project to build a railway through Yudang Mountain in China. His estranged father, Yunbing, a former railroad soldier, wants to reunite with him, but Yizhou is not eager to reconcile with him. Disaster strikes when earthquakes and landslides trap people in an underground cavern. Yunbing and his son fight for their lives together as they try to save the people trapped in the cave. Meanwhile, Ding Yajun cares more about completing the project than about safety and saving lives.