This is the most painful history in the hearts of China people. Because of the Anshi Rebellion, Tang Jun had to lead troops back to China to protect North Korea from the suffering of war, leaving only thousands of soldiers alone in the western regions to fight bravely against the Tubo army who wanted to make trouble in Chang 'an. Guo Ziyi's nephew, Guo Xin, led soldiers to stay in Anxi for decades, which is unimaginable for ordinary people.

Although it is a short film, it is well made and the details are well handled. Each frame can be used as a screen saver. Not only that, but the story is also very clear. Several clips in the film are very touching and tear-jerking, as if they had personally experienced the tragic experience of that year.

At the end of the film, white-haired veteran Guo Xin also appeared. At that time, Anxi had fallen, and the wall was only broken walls, which was badly damaged. Thousands of soldiers are only old people who are still alive, and those young and middle-aged soldiers have already been captured by the Tubo army. Originally, those young soldiers had a chance to escape and live, but they didn't. They stick to their ideals and defend the territory of the motherland. Most of the soldiers came to a terrible end. They were mutilated by the Tubo army, cut off their hands and feet, blinded their eyes, and left to fend for themselves on the ground.

At the end of the movie, the commercial vehicle asked Tang Jun if he was back. The Silk Road is getting worse and worse, and it is not easy to walk. In fact, Tang Jun never came back. It was not until 1 14 1 year later that the first field army of the First Army of the People's Liberation Army invaded Urumqi, and the territory of Anxi really returned to the embrace of the country and belonged to the people of China.