A detailed introduction to the plot of "Xun Qin Ji". The Warring States Period, an age of great upheaval, is one of the most romantic periods in Chinese history. And the story of "Xun Qin Ji" also takes place precisely in this colorful, hero-producing era. Xiang Shaolong (Louis Koo) is a G4 special agent from 21st century Hong Kong. In order to win back his true love, whom he has silently neglected for seven years, he resolutely decides to accept the time-travel experiment. However, during the journey, the machine malfunctions, and he arrives three years earlier than the designed time, landing in the Warring States period with no way to communicate with the modern world. Xiang Shaolong is stranded alone in the State of Zhao. To return to the future, he is determined at all costs to find Ying Zheng, who has not yet ascended the throne and is currently under house arrest in the State of Zhao, living as a hostage prince. He aims to help him achieve a great and glorious cause... But upon investigation, Xiang Shaolong is shocked to learn that the real Ying Zheng has died in the war. Faced with difficulties, in order to survive,