先热情地清扫吧！！

　　杀疯了高燃女性复仇。

　　Officer John Cooper returns to duty after recovering from back surgery and meets his new partner, Officer Jessica Tang, a tough and disciplined cop with her own set of baggage from working the streets. Lydia, whose new partner is Ruben Robinson, can't seem to escape helping a former CI who won't stay in safety. Ben, Sammy and Dewey chase an armed man into an elementary school, while Ben bumps heads with an intense street cop whose cynical attitude is affecting their work.

　　乐天开朗的记者立（林家栋），与父母及妹珊（杨千嬅）本过着平凡而快乐的生活，但一宗钻石失窃案，令立骤然卷入麻烦苦恼中……
　　立的同乡井（林保怡）由内地来港投靠立，更誓神劈愿说失窃的钻石是由一隐形人所偷去。井找来女警岚（陈妙瑛）帮忙，立恐岚受骗，遂一同展开追查。不久，立遭对头杂志的编辑图（陈启泰）设计陷害，被控告捏造假新闻。此时，立意外喝掉隐形药水，变了隐形人，遂趁机四出找寻证据为自己平反。期间，立遇上图的女友记者颖（陈芷菁）。颖因意外暂时失明，所以未有察觉立的变异。二人相处下来亦成为好友。立向颖暗示图乃阴险小人，奈何颖对图深信不疑，立无端枉作小人。后颖无意中撞破图的恶行，决与图分手，立见颖伤心失落，便加以安慰，二人感情更进一步。图与立此时已成水火之势，为要除去眼中钉，图更展开一场大报复……

　　Series two will reunite us with Detective Sergeant Mackenzie ‘Mack’ Clarke (Anna Samson), who’s longing to get back to the UK and the life she’s always craved. But for now she’s stuck in Dolphin Cove, dodging her ex-fiancée Glenn’s (Tai Hara) upcoming wedding after overhearing his unexpected declaration of love in the series one finale – a confession that she can’t unhear.
　　Luckily for Mack, her compulsion to solve impossible cases serves as a great distraction, and there’s no shortage of murders to investigate. From the literary world to state-of-the-art shark labs, dating apps and rock concerts, Mack and her team face challenging mysteries with their unique blend of humour and tenacity. But Mack’s biggest challenge of all? Finding a way to exist in Dolphin Cove as the ultimate outsider.