西华医学院迎来了学生的实习期，虽然各有个的小九九，不过成绩垫底不务正业的赵冲（杜江 饰）、经常在失恋道路上摔跟头的艾小天（张佳宁 饰）以及谨慎专注的八年制博士生邹倚梦（周放 饰）还是被分配到了号称医护最前线的急诊室实习。他们的面前是有着丰富临床经验的程俊（任重 饰）、欧阳雨露（张俪 饰）、王博（王阳 饰）等前辈，面对因各种病症和突发事故被送到急诊室的患者，这些精英展现了各自出色的急救手段与死神争分夺秒，挽救生命。在此过程中，奇妙的友情和爱情之花也悄然绽放。程俊一直喜欢欧阳，随着强有力的竞争对手沈青川（张铎 饰）加入急诊室，他们两人的角力变得更加激烈。 奔走在医护最前线的青年医护工作者，他们以各自的心血为这份神圣职业增光添彩…… （英语）A new internship season comes for students at the Xihua Medical College. All these interns have their own little plan. Zhao Chong (acted by Du Jiang), who has a poor academic record, Ai Xiaotian (acted by Zhang Jianing), who often tumbles on the way of seeking love, and Zou Yimeng (acted by Zhou Fang), an eight-year doctoral student who is meticulous and focused, are selected to intern at the emergency room, which is the frontline of medical care. They are instructed by Cheng Jun (acted by Ren Chong), Ouyang Yulu (acted by Zhang Li), Wang Bo (acted by Wang Yang) and other doctors with rich clinical experience. In the face of patients brought to the emergency room for a variety of illnesses and emergencies, the doctors demonstrate their outstanding first aid skills, fighting against death and saving lives. The young medical professionals on the frontline of health care add to the glory of this sacred profession with their painstaking efforts. In the process, flowers of friendship and love quietly blossom. Cheng Jun has grown affections towards Ouyang. As the powerful rival Shen Qingchuan (acted by Zhang Duo) joins the emergency room, the tug of war between Cheng Jun and Shen Qingchuan becomes more intense.