At Yang-Da University Hospital, Associate Director of Emergency Medicine Chou Cheng-chun makes a bold decision to accept Lin Geng-ming, an average-performing medical school graduate. Lin joins the emergency department as a resident alongside elite peers, Tang Hsi and Chiang Tung-yen, working shoulder to shoulder to save lives. Together with senior attending physician He Yu-hua, the ER team faces relentless medical crises, ethical dilemmas, and internal power struggles within the hospital. Miracles of the ER delves into the complex dynamics between doctors and patients, patients and their families, revealing both the tension and the deep compassion that bind them all together.