Lin Wanqing, an obstetrician and gynecologist, encounters a pregnant woman named Shen Yue who suddenly suffers a medical emergency aboard a flight. Despite the limited resources, she insists on keeping proper records, clarifying responsibilities, and swiftly administering emergency care, successfully buying time for medical responders on the ground. Later, when faced with public accusations and doubts, she uses her professional expertise, evidence, and legal procedures to uncover the truth. She also helps Shen Yue escape from a controlling situation and bravely begin a new life. The incident prompts the hospital to improve its protections for medical professionals providing emergency assistance outside the hospital, allowing kindness, rules, and responsibility to work together to safeguard lives.