Xu Zhaoming, the youngest editor of the Hanlin Academy, appears to be a gentle scholar, but is actually a time traveler with the mind and knowledge of a modern elite. One day, when he was sorting through the pile of old papers, he accidentally intercepted an email from the "future" - the sender claimed to be the "Time Administration", warning him: history has been tampered with, and there are "parasites" from aliens hidden in the Mongolian cavalry. They disguise themselves as humans and control Kublai Khan's decision-making level. What's even more frightening is that there is one of their spies in the Xu Mansion - Xu Fu, his old servant who has been with him for ten years, is actually the host of the alien parasite!
Xu Zhaoming wanted to seek confirmation, but found that Xu Fu had secretly passed information to the Mongolian "Tianji Camp". He was falsely accused of collaborating with the enemy and fell from a rising star in the court to a prisoner overnight. Faced with severe torture and death threats, Xu Zhaoming relied on the information leaked in future emails and his own elite talents to stage a shocking reversal at the Caishikou execution ground - not only exposed the alien parasite's conspiracy, but also used his tricks to become the actual controller of Lin'an City's defense against foreign enemies. However, he soon discovered that this secret war across time and space was far from over. The alien "web weaver" had penetrated into every corner of the Song Dynasty...
