After graduating from university, medical student Fan Shasha returned to work in the county-level hospital in her hometown, and used her spare time to follow the team to take care of the elderly suffering from "rotten foot disease" due to germ warfare. On the way to help, they came into contact with all kinds of patients, or because of the disease, they had low self-esteem and closed themselves, or because of the disease, they died alone... The treatment team overcomes academic challenges and helps patients untie their hearts.