Wei Tie, a former food inspector, returns to his hometown to start a business by opening a small pork stall in a farmers' market. Drawing on his professional experience, he helps his neighbors identify adulterated and substandard meat injected with water, earning the deliberate hostility of fellow vendors. He stands firm on meat quality standards, befriends Zheng the Butcher, an honest slaughterhouse operator, and wins the support of Chen Hui, the market administrator, who is moved by his principles. Together, they operate in compliance with regulations, build the Tie Xin Pork brand, teach the public how to identify meat quality, and protect food safety for ordinary families.