Tang Jiayu, a cardiac surgeon who has practiced abroad for many years, is invited by Vice President Liu Feng to return to China and lead the Heart Center at Beijing Anhe Jisheng Hospital. She becomes acquainted with Ouyang Zhenyu, the medical department director, and forms a close bond with anesthesiologist Ye Yiming. Together with her ICU team—Jiang Bailie, Long Xiangdong, Qin Dazhong, Zhou Da, and Liao Xiaobo—she treats 28 rare heart disease cases. Through their work, they successfully develop China’s first fully magnetic levitation artificial heart, making history in cardiac surgery.