该剧改编自清闲丫头所著同名小说。故事延续第一部的剧情，讲述三法司少年团联手“攘外”，将一个个看似毫无关联的案件抽丝剥茧、扎根串联，护百姓安宁，更守家国平安的故事。
The mini-series follows the history of the Roman Empire, from approximately the death of Marcellus (24/23 BC) to Claudius' own death in 54 AD. As Claudius narrates his life, we witness Augustus' attempts to find an heir, often foiled by his wife Livia who wants her son Tiberius to become emperor. We also see the conspiracy of Sejanus, the infamous reign of Caligula, and Claudius' own troubled period of rule.
姜大卫（郑敬淏 饰）曾是备受尊敬的法官，人生却在一夕间分崩离析。他转而加入顶尖律师事务所的公益法律服务团队，而希望和使命就在各个意想不到的灯火阑珊处。
臭名昭著的行骗首领Mickey Bricks (Adrian Lester饰)将携同党设局老将Albert Stroller (Robert Vaughn饰) 及别名'三袜'的技术特工Morgan (Robert Glenist饰) 回归银屏. 本季中, 同时回归的还有姐弟双雄Sean 和 Emma Kennedy (Kelly Adams
