在父亲的汽修店，这位时运不济的经理努力改善客服并增加利润，同时还要让爱惹麻烦的表妹乖乖听话。
深夜，一阵枪声划破长空，摩托车后座上的杀手连续射击，黑道人物吕焕和他贴身保镖身中数弹，当场毙命…… 吕焕是黑道上的一哥，他在道上纵横多年，各个帮派基本上都买他的面子…… 杀手经过了精心策划，作案手法干脆利落。刑警队长邹天明赶到现场，只提取到了几枚史密斯维林手枪弹壳，因是深夜，周围也无目击者…… 吕焕的亲弟吕东和他的军师董宏兵决定沿用黑道上的解决办法，告诉手下人不与警方合作，自己解决争端，决计报复…… 吕东几年前曾被邹天明怀疑雇凶杀死其情妇黄小丽的丈夫，但终因关键证据的缺失而无法追究。邹天明至今还保留着现场提取的一枚弹壳，那是史密斯维森手枪的专用弹壳…… 某夜总会发生枪战，吴建军和其手下数人受伤，一人当场死亡，开枪人趁乱而逃…… 警方来到医院找吴建军录口供时，吴建军却秘密出院，两日后，吴建军和他的马仔在千进而之外的疗养院被枪杀……
The series begins when suspected human remains are uncovered on Whitney Marsh - Jess and Sunny are immediately called to the scene, abandoning their evening plans to Jess’s husband’s chagrin. Dr Balcombe’s analysis reveals that the remains are relatively recent and suggest a grim conclusion: the body was placed there already dismembered. With this insight, Jess and Sunny intensify their search certain that other body parts may not be far away. As the investigation unfolds, viewers are introduced to a diverse new cast of characters: Melinda Ricci, an outspoken television commentator based in Ireland; Martin ‘Marty’ Baines, an autistic man living with his mother Dot in Deal, Kent; Asif Syed, an Afghan training for his UK citizenship test; and Juliet Cooper, a history lecturer and faculty head at a London university. While these characters live seemingly separate lives, they are intricately connected by their pasts. It’s up to Jess, Sunny, and their dedicated team to uncover these hidden links and ultimately expose the truth behind the cold case murder.
民国年间，济南城中。少年君宝为人正直 ，智勇双全，他身姿矫健，是难得的练武 奇才。为保护母亲，君宝砍伤了恶霸楚天 九，这一砍砍出了他一生的悲欢传奇。君 宝被警察署巡官陈宇和楚天九欺凌，被关 进北大窑监狱。机缘巧合，他认了江湖上 声望最高的老贼王李云成为师，习得一身 绝世轻功。在奇人叶飞的帮助下，他学会 了各种奇门绝技，与叶飞浪迹江湖。为了 寻找叶飞的妹妹沈冰，他北上京城，结识 了阿乐、小七、方俊生等人。为揭露陈宇 的真面目，君宝混进警察署并取得了陈宇 的信任。他白天潜伏在陈宇身边，夜晚就 化身侠盗，为民除害，劫富济贫。接着， 他成立了燕子门，带领阿乐、小七等人伸 张正义。
