Retired special forces soldier Wang Linyuan rescued the crashed alien spaceship pilot "Xingmang" while climbing in the wild. He gained immortality and the opportunity to travel through time and space, and decided to return to ancient China to change history. Lin Yuan traveled to the end of the Xia Dynasty for the first time, tried to help Xia Jie reform but failed, witnessed the Shangtang Revolution, and experienced the stubbornness of history for the first time. Later, when he went through various dynasties and tried to change history but encountered setbacks, it showed how he gradually realized the complexity of history from a confident special forces soldier.
