As the cold wave approaches, seafood merchant Shen Zheng buys whiteleg shrimp at a flat rate of eighteen yuan per pond, only to be questioned by the villagers of Baiwan Village for taking advantage of the fire to lower prices. Some bet on shrimp prices continuing to soar, while others choose to pocket their profits in advance. As the cold wave intensifies, transportation gets hindered, and shrimp prices fluctuate violently, the choices of the two villages gradually head toward different endings. Facing temporary contract breaches, acquisition traps, public opinion doubts, and supply chain crises, Shen Zheng and Gu Qinghe can only rely on testing, contracts, and scheduling to guard every single batch. In the end, everyone came to understand that what truly decides winning or losing is never the highest quote, but who can see the cost clearly before the risk arrives.