同居进入第二年，宫田晃启（长谷川慎 饰）与岩永崇（古屋吕敏 饰）沉浸在幸福之中。两人在忙碌的日子里彼此珍惜、相互深爱，终于拥有了寻找已久的理想关系，内心充满幸福。然而，宫田一方面觉得两人的距离比以前近了许多，另一方面却也意识到，自己仍有很多关于岩永的事情并不了解。 “我不太想谈过去的恋人。”——岩永这样说道。而那些偶尔流露在只言片语和举手投足间、属于岩永“自己所不知道的过去”，却始终萦绕在宫田心头。就在这时，岩永在杂志采访中公开表示：“我有了重要的人。”看到这篇采访后，岩永的“前男友们”开始陆续出现——！“现在我想在一起的人，只有你。”——明明想相信这句坦率而真诚的话，却始终无法消除内心的违和感。在这段看似圆满的关系旁，动摇的心开始悄然泛起涟漪。 “第二次恋爱”，将再次迎来考验——！
对于哈特利高中的毕业生而言，告别校园，迎接成年！然而当一场复仇恶作剧彻底失控，Amerie和她的朋友们必须掩盖他们的秘密，否则有可能失去一切。
台湾联大医院外科主治医师苏怡华（言承旭 饰）年轻有为，善良的他希望能做一个好医生，心中只想着帮病人解脱疾病的折磨。老院长即将退休，外科主任唐国泰（吴孟达 饰）与内科医生徐大明都是接任的人选。面临升迁的大好机会，两人开始明争暗斗。 此时，台湾领导人的女儿刘心萍（Sanya 饰）患白血病入住了联大医院，院方高度重视。刘心萍也成为了内科与外科之间较量的主要对象，一场白色医袍下丑陋的尔虞我诈的人性角力正式开始…… 面对一系列的钩心斗角以外，苏怡华与外科副主任邱庆成（戴立忍 饰）也要面对剪不断理还乱的感情线，医生能医不自医。
The third season will welcome the West Beverly kids to their senior year of high school. It will be the time of college acceptances and lovers’ rejections. The time of prom dates and promises betrayed. The time of spring break,break-ups, and make-ups. This will all happen in a world of sun and fun,palm trees, and warm sea breezes,success, and excess. From the very beginning of the school year, the lives of the West Beverly group will be shaken up in a way none of them could ever imagine. From this new starting point, their journeys will take them to staggering new heights and terrifying new depths. We’ll see the rise of a pop sensation and fall of a group of friends, the beginning of a new love and the end of a professional dream, the creation of an unlikely family and the demise of another. And that will be just the first week of school. It will be now or never for the students of West Beverly,and they’re not going to waste a moment of time. Expectations will be high,hormones will be raging,and scandals will be hiding around every corner. From the brightest moments of love and happiness to the darkest hours of shame and fear, senior year at West Beverly promises to be an unforgettable journey.
