While Lin Xiaohe is away at work, she asks her mother-in-law, Wang Xiulan, to look after Yaya. Lacking experience with modern childcare practices, her mother-in-law fails to notice some important details in the baby's care in time. Feeling uneasy, Lin Xiaohe rushes home, but Wang Xiulan panics and fails to communicate properly, leading to misunderstandings and delays. Once the family discovers the problem, they take it seriously and act immediately. Through this experience, the family learns the importance of communication about childcare and scientifically informed caregiving. They become more understanding of one another, learn childcare knowledge together, and join hands to protect their loved ones with care.