Song Hao moves to the city with his son, Song Zhe, and often lends a hand at the Dingsheng Factory in his spare time. The employees mistake him for a security guard. When his wife, Wang Xiulan, suddenly falls ill and is hospitalized, Song Hao rushes to leave, but the newly appointed HR manager, Chen Dong, stops him, making baseless accusations and forcibly searching him, nearly delaying her treatment. After Song Zhe investigates what happened, he discovers that Chen Dong has long been managing the staff improperly and dismisses him. Resentful, Chen Dong edits a video to spread false accusations. However, the complete evidence clears Song Hao's name, and the court orders Chen Dong to issue a public apology and pay compensation. Afterwards, Song Zhe improves the company's management system, allowing Song Hao to return peacefully to his everyday life at home.