Fish farmer Chen Yuan is oppressed by the village head and his son Zhao Tianhao, who attempt to forcefully acquire his fish at a low price and cut off the fish pond's water supply. While everyone advises him to compromise, Chen Yuan has long secretly built a mountain road, connecting to the provincial capital's cold chain to sell his mature fish. When the Zhao family demands twenty thousand in road repair fees to pressure him, Chen Yuan plans to fill the pond and raise pigs, but unexpectedly uncovers a high-quality spring, attracting twenty million in investment. The Zhao family falsely claims the spring belongs to the village collective, but Chen Yuan refutes them by producing a buyout dead contract. Following a succession of local rogue harassment and environmental closure crises, Chen Yuan brings down the protective umbrella using a black ledger, sets a trap to catch opponents red-handed, and successfully leads Tianquan Fisheries to go public.