During a mission, modern special soldier Li Ming accidentally traveled back to 1937 during the Anti-Japanese War. Facing the unfamiliar and cruel war environment, he gradually adapted to this era by relying on his military literacy and modern knowledge, and joined the Eighth Route Army, starting a bloody and glorious anti-Japanese journey. In the war-torn era, Li Ming fought side by side with the Eighth Route Army soldiers and participated in many major battles, such as the Hundred Regiments Battle and the Pingxingguan Victory. He used modern war strategies and tactics to help the Eighth Route Army improve its combat effectiveness and change the course of the war. At the same time, he established a deep friendship with his team members, developed a sincere love with Lin Hong, a female Eighth Route Army soldier, and adopted a little girl who had lost her parents, treating her as his own. In this process, Li Ming not only had to face the atrocities of the Japanese army and the cruelty of the war, but also faced internal contradictions and challenges. With his firm belief and tenacious will, he led the team to establish an anti-Japanese base area in the Taihang Mountains, developed and strengthened the anti-Japanese forces, and laid a solid foundation for the final victory. When the dawn of victory first emerged, Li Ming faced the choice of whether to return to modern times. He finally decided to stay in this era, pass on his knowledge and experience, and inspire future generations to continue working hard for the prosperity of the country and the rejuvenation of the nation. With bloody battles, deep emotions and touching stories, this novel demonstrates the bravery and unyielding spirit of the Chinese people during the Anti-Japanese War, and also reflects the protagonist's growth and responsibility after time travel.