In the autumn of 1972, Jiang Tang unexpectedly awakens her memories, determined to change her own life and that of her mother, Zhou Xiumei. She encourages her mother to bravely bid farewell to an unsuitable marriage and rediscover her self-confidence and direction in life. Meanwhile, childhood sweetheart Pei Heng's years of guarding finally receive a response, as the two grow together through mutual companionship. After entering the research institute to work, Jiang Tang gradually learns to take on independent responsibility, and Zhou Xiumei also embarks on a brand-new life. Supported by family, friendship, and love, the mother and daughter break out of their predicaments, welcoming their own happy lives with courage and effort.