Drastic changes in climate have triggered desertification around the world, and mankind has only relied on "artificial oases" to survive. {Qin Yue}, as a water conservancy engineer in Ganquan Town, guards the water circulation system that sustains survival day and night. However, the water source has been inexplicably declining recently. After investigation, it was actually caused by the surrounding sand pirates using old-era equipment to steal groundwater. In order to protect her homeland, Qin Yue volunteered to lead a convoy of townspeople across the vast sand sea. On the way, they encountered deadly sandstorms and mutated biological attacks, and accidentally discovered buried water conservancy sites from the old era, from which they obtained advanced water purification and water storage technology. With the help of technology, Qin Yue designed a trap to defeat the sand pirates and regain the water source. After returning, she upgraded the oasis system, expanded the living space, and made Ganquan Town a beacon of hope for the continuation of mankind in the sand sea.