During the Tianbao period of the prosperous Tang Dynasty, the seemingly prosperous Chang'an City was undercurrent. A mysterious "Twelve Hours Picture of Chang'an" suddenly appeared in the world. It is rumored that the picture contains the mystery of Emperor Xuanzong's life experience and the shocking prophecy of the Anshi Rebellion. At that time, the prime minister Li Linfu wanted to destroy Tutu and consolidate power, the prince Li Heng wanted to protect himself, and An Lushan wanted to seize it and plot a rebellion. However, a group of guardians with different identities vowed to protect this mysterious picture that affects the national destiny. The story is limited to ten days, and revolves around the struggle and protection of this picture, unfolding a magnificent historical picture of the Tang Dynasty, integrating suspense, intrigue, martial arts and historical fate, and exploring the crises and human choices under the appearance of a prosperous age.
