Su Yue, a modern urban planner, and Lin Shen, a Ph. D. In mechanical engineering, accidentally traveled to the end of the Yin Dynasty, when clans were divided and wars were frequent. They became Shen Qingwu, an orphan on the frontier, and Xie Yun, a declining scholar. Faced with the desperation of being oppressed by powerful powerful people inside and being besieged by rogue bandits outside, the two changed from modern "Party A and Party B" to a modern career alliance. The female protagonist takes the helm with macro-strategy, while the male protagonist uses science and technology to break the situation. Starting from building water conservancy and improving agricultural tools, he gradually builds the dilapidated Liancheng into the "Pearl of the North" that combines modern management concepts and technological sparks. The work tells how they turned knowledge into productivity, created order in troubled times, absorbed refugees, and fought against power. In the end, they not only protected the peace of one place, but also ignited the sparks of technology and civilization all over the world, creating a new pattern.