Quality inspection supervisor Su Qiao is framed by a black-hearted profit gang, and unexpectedly returns to three days before the crisis occurs. Relying on her past-life memory and professional ability, starting from intercepting moldy raw materials and seeing through framing, she gradually collects evidence, uniting with the factory and police to investigate black workshops and the cross-provincial fake and inferior food network. Facing threats, arson, and public opinion smears, she always adheres to the quality bottom line, ultimately making the lawbreakers face sanctions, and leading the food factory to complete rectification and development, realizing a rebirth of her career.