A young man with a deep reverence and fascination for history unexpectedly transmigrates to the Korean War battlefield in 1950. Amid the freezing snow and ice, the flames of battle rage across Lake Changjin, and the sight of the Volunteer Army soldiers fighting for their lives shakes him to the core. Armed with modern supplies and knowledge, he weaves through a hail of bullets, providing crucial support to the troops and sharing life and death with comrades like Zhao Weiguo and Xiao Sichuan.