Based on the story of combat hero Li Baocheng, this novel tells the story of Li Baoguo and the two “births” of a heroic unit. The first came as an army unit that grew stronger through blood and fire during the War of Liberation; the second came as an airborne unit forged into steel on the Korean battlefield. In peacetime, it eventually found a new mission. Through the fate of an individual, the story reflects the great journey of the Chinese People's Liberation Army from revolutionary warfare to modernization.