在慧南大学医院精神科担任医生的日野伦太郎（堺雅人 饰）拥有精湛的医术和同侪难以匹敌的热情与同情心，为了病患他殚精竭虑，勇于打破常规。其做法得到青梅竹马的外科医生水岛百合子（吉濑美智子 饰）以及护士桐生薰（内田有纪 饰）、实习医生川上叶子（高梨临 饰）等人的支持，却也饱受 精神科主任宫川贵博（长冢圭史 饰）一众的斥责和反对。作为精神科医生，伦太郎同样遭受巨大的压力，于是前辈荒木重人（远藤宪一 饰）的心理诊所成为他宣泄愤怒的最佳场所。在某次例行的应酬中，伦太郎邂逅了美丽的艺伎梦乃（苍井优 饰）。梦乃雍容华贵，机灵可爱，甜美的笑容背后则隐藏着常人难以窥探的黑暗世界。 察觉到梦乃的异状，出于爱意，又或者出于医者的职责，伦太郎无法放任不管……

Attorneys Kensuke Komikado and Machiko Mayuzumi receive a request from a general hospital. They go up against veteran attorney Kazuma Kujou who is trying to extract money from the general hospital by a medical malpractice lawsuit.

Kazuhiko Kogure, who is a 2nd grade student in middle school, falls off from one of the school's rooftop. There were other male students on the roof when Kazuhiko Kogure fell off. According to the other students there, Kazuhiko Kogure tried to jump to another school building, but missed. Fortunately, Kazuhiko Kogure only fractured his leg and ribs. According to Kazuhiko Kogure's mother Hidemi, the school insists it was students playing around and did not involve bullying. Hidemi though, doesn't believe it, because Kazuhiko Kogure has a fear of heights. Hidemi goes to see attorney Machiko Mayuzumi and Machiko decides to take her case, but she asks for fellow attorney Kensuke Komikado's help. Meanwhile, the school hires attorney Teshigahara Isao.

“世纪恶女”安藤贵和（小雪 饰）毒杀情夫一案震惊全国，从而也揭开《Legal High 2》的序幕。依然不改本性的古美门研介（堺雅人 饰）冒天下之大不韪出任贵和的律师，为其进行无罪辩护，谁知却遭到曾在其门下实习的新人检察官羽生晴树（冈田将生 饰）的阻截，更史无前例首尝败绩。在此之后，梦想为所有人带去幸福的羽生辞去公职，转而开起律师事务所。而古美门和黛真知子（新垣结衣 饰）致力于游说贵和上诉的同时，为了弥补事务所的开支而不得不接手各类奇怪棘手的小案子。在这一过程中，羽生亦敌亦友，成为了古美门继三木律师（生濑胜久 饰）之后另一个难缠的对手。 一个是视法庭如战场、将胜利和金钱看作比正义还重的“恶德讼棍”，一个是拥有阳光般温暖笑容渴望圆满解决所有争端的Mr Win-Win。唇枪舌战的好戏再度上演……

泡沫经济时期（1992年），背负着悲惨过去的庆应大学毕业生半泽直树如愿进入产业中央银行就职。银行内部有着“旧东京”与“旧产业”派系斗争。这一年，半泽直树就任东京中央银行大阪西分行融资课课长已有两年。坚信人性本善的他在履行银行家职责的同时坚守着普世的道义。半泽能否凭一己之力改变这冷漠腐化的现状？他能否对抗银行内外的敌人、贯彻自己的信念？