The protagonist of the series "Our Doctor" is a young and talented doctor named Maria Lukash. She is the only heir of a famous cardiologist in the city, and she specializes in severe childhood diseases. One day, she unsuccessfully performs a complex surgery, after which nine-year-old Maya falls into a coma. Maya's stepmother turns her father against Maria, and she is dismissed from her job at his medical center. In response, Maria finds a position at a regular district children's clinic, where specialists like her are in high demand.