In 1937, the mountains and rivers were shattered, and the Japanese army trampled on the Central Plains. A modern young man accidentally traveled to the front line of the Anti-Japanese War, carrying a mysterious live broadcast system that can connect to the networks of later generations. He recorded the actual battlefield conditions with his flesh and blood, transmitted his persistence in the smoke of gunfire back to modern times in real time, and awakened the memories of hundreds of millions of people. During the live broadcast, soldiers charged fearlessly, civilians risked their lives, and women did not give in. Every battle embodies the dignity and struggle of the nation's backbone. Modern audiences send supplies, spread information, and raise donations through barrages, and time and space merge into a road to salvation. There are no superpowers, only reality; there is no individual heroism, only collective belief. In this spiritual resonance that spans more than eighty years, history is re-visited, and the names of heroes will never fade. The world is divided into two ends: one is the war-torn 1937, and the other is today that we must never forget. What connects them is a signal line called "conscience".
