Young construction project manager Lu Yuan takes over an unfinished resettlement housing project. Facing workers demanding unpaid wages, an old contractor, material suppliers, delayed payments from the client, and poaching by rival companies, he uses safety standards, closed-loop quality control, material traceability, milestone-based payments, BIM scheduling, and legally admissible evidence to transform a chaotic construction site plagued by favoritism, material theft, and fraudulent inspections into a model project for the entire city.