Two modern men accidentally traveled to the Song Dynasty. At this time, the Song Dynasty was facing famine and war. It was controlled by the old feudal forces inside and surrounded by powerful enemies outside. The protagonists use modern science, engineering, agriculture and management knowledge to try to achieve the dual economic and military development of the Song Dynasty in a short period of time. However, in order to safeguard their own interests, the old feudal forces continue to hinder the protagonist from promoting advanced productive forces and new ideas, distort the protagonist's ideas, and misunderstand the public. The protagonists are struggling to move forward under the dilemma of resource depletion. They must take into account both economic development and military defense to avoid excessive development that triggers a strong counterattack by the old forces. In the confrontation with the old forces, the protagonists are in opposing camps and are forced to take sides. Although it finally succeeded in developing the economy and military, it was a bitter victory at the expense of many partners. The crisis of foreign invasion faced by the Song Dynasty made every step of the protagonists extremely urgent, and the eagerness of neighboring countries also brought huge pressure for survival.
