Shen Zhitang burned the hospital license and traded his daughter's life for a black clinic on the outskirts of the city. Lu Yunzhou quietly showed up to find the truth and prepared a life-saving prescription for her; Grandma Chen hid the medicine but secretly administered acupuncture to seriously ill children late at night; Zhou Yansheng led a team to seize the drug, but saw the truth about his mother's signature on the surveillance camera; Lin Xiaoyu secretly copied the prescription and prepared to expose the entire medical shady; Pei Han smuggled medicinal materials just to let the poor live until the day they have a bed. She is not a doctor, but she has become the last medicine for millions of abandoned people. And when the official investigation, the siege by pharmaceutical companies, and the corruption of the system are approaching, is the license she burned the ignition that will tear the entire system apart?