25-year-old Kelsang Dawa is a signal worker in the Nang County Comprehensive Maintenance Workshop of the Lhasa-Nyingchi Railway, responsible for the daily maintenance and troubleshooting of the signaling equipment.
Two years ago, he realized his wish to become a railway worker. He humbly asked the masters for advice, took advantage of the time off work to systematically learn professional knowledge, study circuit schematic diagrams... Exploring and practicing again and again, Kelsang Dawa manages to improve his business knowledge and skills.
In his spare time, Kelsang Dawa gave full play to his advantages of being good at singing and dancing, and actively participated in the art performances organized by the company. "Dancing inspires my fighting spirit to pursue my dreams. The lights on the stage are like the lights in the signal machine that guide the trains, leading me to constantly improve myself."
However, a group of people in white protective suits never stop shuttling between the tarmac...