The story of this drama takes place around the Battle of Zhongtiao Mountain in the middle of the Anti-Japanese War. It tells the story of a young master living in a wealthy family. In the bloody battle with the Japanese invaders, he constantly rubbed against the Eighth Route Army, fought side by side, and gradually grew into a hero. At the same time, Jiuer, a female soldier of the Eighth Route Army, Changchun, the company commander of the Eighth Route Army, Su Yunxiao, Long Shao's first love, and her husband Wenxuan, Shitou, Long Shao's younger brother, and Akutagawa, a cold-blooded sniper of the Japanese army, are all famous for their sharpshooters. Therefore, this is also a legendary TV series that interprets the sharpshooter killing the enemy. Long Shaoqin, who has received regular sniper training at a German military academy, is a young master born in a wealthy family. He returned to the front line of the Anti-Japanese War in China, with a passion to kill the enemy and serve the country, but he was not adapted everywhere, and finally came to the First War Zone Brigade. His first mission was to lead a small team to snipe a Japanese artillery team. At the end of the mission, he encountered a counter-encirclement by the Japanese invaders, and almost the entire army was annihilated. Only Long Shaoqin escaped. Long Shaoqin returned to the army and suspected that someone had betrayed the operation. However, Wenxuan, the chief of staff of the Military Intelligence Bureau, who was in charge of intelligence work, suspected Long Shaoqin. Why did he escape back alone? At the same time, Long Shaoqin's childhood sweetheart Su Yunxiao also appeared in this brigade. It turned out that she married the chief of staff who suspected Long Shaoqin, which made Long Shaoqin think of leaving again. However, the situation on the battlefield changed, and Long Shao could only continue to perform the next mission. This time the mission was to cover the transfer of troops. The forest regiment of the Taiyue Military Division of the Eighth Route Army was responsible for receiving the brigade of the National Army. For the first time, Long Shao fought side by side with Chang Chun, the company commander of the Eighth Route Army. Although there was a huge gap between the two sides, they cooperated tacitly in sniping the enemy. Then the Japanese invaders sent an ace sniper Akutagawa who was trained in the same school as Long Shao to attack the brigade headquarters of Duan Brigade at night. This intelligence was intercepted by the Eighth Route Army, so the Eighth Route Army took the initiative to smash Akutagawa's sneak attack together with the Duan Brigade. During the battle, the female Eighth Route Jiuer was injured in order to rescue Long Shao. This gave Long Shao more opportunities to get to know the Eighth Route Army. Wenxuan discovered that Long Shao and Akutagawa were classmates, and he became more suspicious of Long Shao. However, Long Shao's performance on the battlefield was highly recognized by professional soldier Brigade Commander Duan. Wenxuan also discovered that his wife Su Yunxiao had a special relationship with Long Shao. The two slept in the same bed but had different dreams, but Su told Long Shao that Wenxuan was the best man in the world. In fact, Su Yunxiao had been forced to become a spy for the Japanese invaders because his child was held hostage by the Japanese invaders. The Japanese army attacked in large numbers, and the battle was extremely fierce and cruel. The new recruits added by Duan Brigade were massacred by the Japanese army. Eight hundred student soldiers threw themselves into the turbulent Yellow River without hesitation. During the battle, Long Shao was injured and rescued by the Eighth Route Army. Long Shao established a deep brotherhood with Shitou, a student soldier he saved. As the War of Resistance Against Japan drew to a close, the Zhongtiao Mountain area once again became a battlefield between the Chinese and Japanese armies. The evil Akutagawa was finally killed by Long Shao, but Jiuer was blinded by injuries to protect Long Shao. After Japan announced its surrender, rumors of civil war gradually became popular, and Duan Brigade and Lin Tuan no longer had any contact. For Long Shao, the war is over and he just wants to retire to the mountains. However, Long Shao's friendship with Dachun Jiuer is unacceptable to the Kuomintang and he becomes the target of internal purge. The military intelligence agents even want to execute him secretly. Wu Shiqiu, a military intelligence agent, supervises Duan Brigade and Shitou controls the special forces battalion. Shitou is a key force. Long Shao talks to Shitou and Shitou says that he will listen to his elder brother in everything. Jiuer comes to rescue Long Shao at night relying on her blind shooting skills. Wu Shiqiu, a military intelligence agent, knows the pattern of Jiuer's blind shooting. Several people surround Jiuer, create various false images, and then shoot Jiuer to death. Long Shao throws away the military cap of the National Army, does not wear epaulettes, and walks to the National Army position as a civilian without a gun. He stands under a row of guns and talks to Shitou. He talks about everything he has thought about in front of Jiuer's grave in the past few days, and talks about the meaning of killing war soldiers in peace and the meaning of bravery. Military Intelligence Bureau agent Wu Shiqiu ordered to open fire, and Long Shao slowly fell to the ground, using his life to explain to the stone and the world that a soldier's true bravery is to stop the war.