Retired special forces soldier Lu Feng hides his identity and embarks on a journey to western Sichuan carrying a deceased friend's dying wish, but encounters consecutive rockfalls, landslides, and flood traps on the rugged mountain road. The coach bus is trapped in a desperate plight; the tour guide is flustered and the tourists are panicked. Relying on his exceptional skills, he steadies people's hearts, organizes hazard avoidance and demolition rescue, pulling everyone back from the jaws of death time and again. Trapped in the mountains, he stands shoulder to shoulder with medical worker Su Wan, saving injured tourists and guarding frail the elderly, winning everyone's trust with his actions. After escaping danger, Lu Feng does not stop; he establishes a mountain rescue team, teaches rescue techniques to more people, and makes this team a standing force guarding the mountain life line.