After undergoing heart stent surgery, Zhou Yuan completes his treatment and boards a flight back to China. During the airport security check, team leader Liu Gang disregards his complete set of legally certified medical documents and insists that he take his prescription medication on the spot to prove its safety. Refusing this unreasonable demand, Zhou Yuan seeks third-party intervention. He later discovers that Liu Gang has a long history of violating regulations and gathers evidence from multiple victims to file a real-name report. After numerous twists and turns, the responsible personnel are dealt with according to law, the airport updates its prescription medication inspection procedures, and Zhou Yuan uses his experience to encourage more people to stand up for their legitimate rights and interests.