Tang Yin, the true controlling shareholder and genius chef of the Tangge Group, disguised herself as a kitchen helper to go undercover at her own store and investigate chaos, under the secret arrangement of Old Master Tang. Wang Jiao, the mistress promoted by adopted son Zhao Yao, willfully made things difficult and even splashed hot oil to scald an old employee who protected Tang Yin. Tang Yin tore off her disguise, exposing Zhao Yao's evidence of job embezzlement and fake ingredients, and the two were arrested by the police. Zhao Yao secretly sold the secret recipe and attempted to ruin Tangge at the food festival, but his conspiracy was publicly shattered by Tang Yin. In the end, Tang Yin took charge of the group and led the team to win the gold award at the International Food Summit.