During the four major battles of the War to Resist U.S. Aggression and Aid Korea, China had such a heroic and brave volunteer army. In order to defend the country, they resolutely went to a foreign land, experienced life and death together in the days of fighting side by side, and established a deep revolutionary emotion. Sun Beichuan (played by Liu Ye) is the core leader of this team. He has experienced hundreds of battles, has a rough personality but a kind heart, and has always been fearless on the battlefield. After meeting the head of the art troupe, Meng Sanxia (played by Wang Luodan), this bravery has an additional sense of responsibility. Meng Sanxia is a straightforward person with a hearty personality and a hard mouth and a soft heart. The reason for the argument with the rough Sun Beichuan is that after experiencing the test of life and death on the battlefield together, Meng Sanxia's inner tenderness is awakened. At the same time, Sun Beichuan's good brother, bugler Zhang Luodong (played by Yang Youning) also secretly fell in love with Meng Sanxia. His lonely fate made him simple and optimistic. In order to match Beichuan and Sanxia, he was willing to hide his feelings, but after the death of his only relative, old father Li Shunliang, Zhang Luodong tasted the pain for the first time. Li Shunliang (played by Huang Zhizhong) is Zhang Luodong's adoptive father and a veteran in the team. He is indifferent to worldly affairs and speaks to the point. He is the lubricant of the ninth company and the spiritual mentor of Zhang Luodong. His sacrifice has contributed to a major transformation in Zhang Luodong's life. Wang Wenjun (played by Ye Qing) is a progressive young man with an excellent background in Meng Sanxia's art troupe. She used her life to interpret trust and support to her lover Liu Shiwen (played by Wang Longhua), which inspired the strongest and most manly side of this intellectual full of patriotic feelings, and contributed to his life sublimation from an intellectual to a real soldier. This group of ordinary but extraordinary little people wrote battlefield stories intertwined by love during the cruel and difficult years of war.