专攻刑事案件的律师深山大翔（松本润 饰），热衷以其独有的方式调查案件中不为人所察觉的隐秘真相。当调查陷入僵局时，他就一边做着心爱的料理，一边梳理…

专攻刑事案件的律师深山大翔（松本润饰），热衷以其独有的方式调查案件中不为人所察觉的隐秘真相。当调查陷入僵局时，他就一边做着心爱的料理，一边梳理案件中的线索头绪，并凭借敏锐的观察力和推断力直捣黄龙。某天，在业内享有极高盛名的斑目律师事务所社长（岸部一德饰）向大翔伸来橄榄枝，邀请他加入所内新成立的刑事专门办公室。 坐镇该办公室的是在商务方面声誉颇高的佐田笃弘（香川照之饰），此外还有热爱摔角的女性律师立花彩乃（荣仓奈奈饰）。深山的办案风格固然令这两位反感，可是每当他执拗地抓住那微乎其微的关键线索时，这几名骨子里依旧热血赤诚的律师依旧全力以赴，不惜撞得头破血流。这一切，只为了那被99.9%的有罪率所掩盖下的0.1%的真相……

日本的刑事案件中，被判处有罪的几率高达99.9%。在绝对不可能翻案的案情中，追查那仅剩的0.1%的可能性！ 松本润将继续饰演本作品的主角深山大翔，在微不足道的0.1%的可能性中，追查出能够说服自己的答案。其搭档仍是精明能干的佐田笃弘律师（香川照之饰），两人将继续携手揭露事实真相。此外，第二季将会有前任法官尾崎舞子（木村文乃饰）的加入。

剧情延续上季时间线，吉米的哥哥查克（ 迈克尔·麦基恩 饰）悄悄录下吉米（ 鲍勃·奥登科克 饰）承认在法律文件上做手脚的不当行为，想毁掉弟弟的律师前程，两兄弟的对峙促使本性善良的吉米更进一步转变为游走在法律边缘的无良律师“索尔·古德曼” 。

Whilst Clive Reader celebrates his taking silk but Martha hits the bottle, angry that inspector Wright has lied in court to convict her client Johnny Foster. Later David, the teen-aged son of chambers head Alan Cowdrey, is arrested for causing the death of a policeman , one of six who kettled him during a demonstration. Martha believes David has been bullied into pleading guilty by Wright and wants Alan involved in his son's case but David is not keen to see his father. Reader and Caroline Warwick agree to help Martha, who sees on CCTV that an anonymous man spoke to David in custody but there is no record of this meeting. In court she faces Wright, this time determined to beat him but evidence comes to light which weakens Martha's crusade.

Lindsay gets suspicious when Rebecca seems to be secretly awaiting an important letter - and realizes just how much she was right when the letter finally arrives. Ellenor gets a hysterical call from a client, who ran over a man in the street while drunk, and is shocked to discover exactly who he hit. Hellen prosecutes two boys accused of rape and murder, each accusing the other, and ends up making a deal with the wrong one.

加罗（Garrow）代表詹姆斯·哈德菲尔德（James Hadfield）尝试进行一场冒险的精神错乱辩护。詹姆斯·哈德菲尔德因试图暗杀乔治三世国王而被控犯有叛国罪。

那个个性派刑警们回来了！《特搜9》让成员的个性更加闪耀2018年4月——井之原快彦主演的《特搜9》开始了新的历史，获得了观众的高度支持，平均收视率…