许佳佳继承父志，加入社会安全支队，和队员们一起维护社会治安。
在第四季中，新势力正竞相填补俄罗斯人留下的权力真空，Mike对金斯敦的控制受到威胁，迫使他不得不面对由此引发的帮派战争，阻止他们吞并这座城镇。与此同时，他的所爱之人面临前所未有的危险，Mike必须应对一位固执的新典狱长，以保护自己的人，同时与来自过去的恶魔作斗争。
Having previously held a leadership role on the London Games of Twenty Twelve and a spell in W1A as the Head of Values at the BBC, Ian Fletcher is now bound for the greatest stage in world football. Next year’s tournament will be the biggest ever. Hosted by the USA, Canada, and Mexico with 48 countries taking part and 16 venues thousands of miles apart across the whole of North America; what could possibly go wrong? Ian Fletcher is about to find out, as he joins the Twenty Twenty Six Oversight Team in Miami as its Director of Integrity. Ian Fletcher said: "I’m thrilled at the prospect of joining the Oversight Team in Miami for this unique event. And in terms of the Integrity role, to borrow a soccer analogy, this is a rare opportunity to set out your own goals and then score them on the global stage.”
BBC宣布一次性续订《警之光》两季。
