It tells the story of how Zhou Yanchuan, director of cardiac surgery, and Lu Jiming, an emergency ICU doctor, went from rivals with conflicting ideas to life-and-death partners in rescue work during the preparations for Jianing Hospital to build a joint emergency and critical care center. An old surgery case six years ago was reopened, and Deputy Director of the Medical Department Shen Wenxi and Emergency Nurse Manager Xu Zhaning were also involved in the storm. One is so calm that he is almost ruthless, the other is so tough that he refuses to show weakness; one is sober and sharp, and the other is gentle and tough. Four adults re-understood love, trust and career ideals under operating lights, emergency night shifts, public opinion crises and ambiguous pulls.