Ding Jie, a strong business woman, was imprisoned for signing the wrong document. At the beginning, she clashed with her senior in prison, Bo Sao. She didn't like the prison management system and was isolated. Kelly took the initiative to help her adapt to the new environment, and she met Bo Ma, a kind person who cared about her daughter and took care of her sisters in prison. In order to solve the problem of insufficient sanitary napkins in prison, Ding Jie used her business acumen and Bo Ma to use the power of the various work teams to try her best to solve the problem for her fellow inmates and work together to maintain a peaceful environment in the women's prison. Ding Jie won everyone's welcome. But unexpectedly, the bully of the women's prison, Pig Huan, was imprisoned again, which immediately destroyed the harmony of the prison. In order to become the boss in the prison, Pig Huan set up a trap to frame Ding Jie and Bo Sao, so that the two who were originally in opposition were sentenced to solitary confinement for a week. During this period, the two had a rare heart-to-heart talk, which brought them closer to each other and became close friends. Bo Ma was about to be released from prison, but she accidentally discovered that her daughter Bo Bo was in prison. Bobo complained that Bo's mother had not fulfilled her motherly responsibilities for many years and was unwilling to get close to her, which made Bo's mother extremely sad. During a period when the pig slaughtering ring blamed Bobo to vent his anger, Bo's mother died to protect Bobo. This angered Bobo and everyone else, and they decided to jointly resist the pig slaughtering ring and let the prison return to its former peace and tranquility. Bobo finally resolved the knot he had with his mother Bo's mother for many years, and Dingjie and Bo's wife also realized that happiness must be fought for by themselves. During this period of prison life, everyone finally realized the shortcomings of life and found their own pursuits.