Each takes one's place, does one's duty. In a hospital, each takes the noble mission of safeguarding life irrespective of one's position. Facing his dying patients and FAN TZE-YU (Tavia Yeung), who falls ill during her pregnancy, CHEUNG YAT-KIN (Kenneth Ma) persistently shoulders all the responsibilities, which overly burden him so that he is out of breath. Meanwhile, he re-encounters LOK MAN-SAN (Lawrence Ng), a long-retired medical expert, who has a divergence of opinions. On top of that, TZE-YU suffers miscarriage as a result of a recurring of illness, so she has to give up her career as a surgeon. All of these send massive shockwaves rippling out through YAT-KIN's journey of life. In order to make YAT-KIN realize the true essence of not being so persistent and living the day to the fullest, TZE-YU is determined to change her major to learn a new subject. For a moment, YAT-KIN can hardly accept it. However, he notices that YEUNG PUI-CHUNG (Him Law), HUNG MEI-SUET (Mandy Wong) and the others have gradually grown mature, and each of them manages to assume the individual responsibility as a doctor. In addition, with the inspiration and encouragement received from MAN-SAN and TZE-YU, YAT-KIN finally comes to realize that being a doctor is just like a fighter. Only through the awareness of one’s own capabilities and performing due diligence can one safeguard others' lives.