In the autumn of 1934, Xu Jingnian, an architect who had studied in Germany, returned to China and presided over the preparations for the construction of the Central Museum. Secretly, he was a core member of the "Ming Lantern Society", a national treasure protection organization. Xie Fanxuan, the most mysterious commander in the military, was ordered to closely monitor this returning expert as an assistant.
The childhood best friends who used to be on the streets of Berlin now meet again in the mist of Nanjing. One uses drawings and ingenuity to guard the flames of civilization, with gentle and refined elegance but a rock-solid ambition; the other uses guns and lies to carry out secret orders from the top, with an unpredictable abyss hidden behind cynicism.
When the top-secret plan to move the national treasure southward encounters an internal leak, and when the claws of Japanese agents reach into the warehouse, they test, suspect, join forces, and protect... In the fierce confrontation of faith and emotion, they discover that they are protecting each other not only the thousand-year-old treasure, but also the last immortal light under the broken mountains and rivers.
Purpose: Family, country and world