Chen Huan, a technical backbone working at a northern arsenal, unexpectedly time-traveled back to the early days of the founding of the People's Republic of China. At that time, Li Long, the God of War of China, was still delivering a speech in the auditorium of the arsenal. He proposed making improvements based on the Soviet Union's Katyusha rocket launcher, even if only minor ones. Overseas returnee students Shen Wang and Lin Huaizhou were eager to have a go, which left Chen Huan momentarily stunned. Just then, Zhao Wanning, a weapons researcher beside him, patted him on the shoulder, which helped Chen Huan figure out the situation and realize that a major war between China and the United States would break out soon. Moreover, Zhao Wanning would sacrifice in this war, which made Chen Huan extremely grieved. Now that he had successfully time-traveled, Chen Huan was determined to rely on the weapon research and development system that followed him, exchange reducing his lifespan for the latest weapon technolo
