Grace,AnnieandTommyaregrowingupfastaspoliceofficers,butnothingcanpreparethemfortheturmoiltheyfaceeveryday.It’sayearsincethefalloftheMcIntyrecrimegangandthevacuumhasbeenfilledbyrivalgangs,allcompetingfordominance.ConstableShaneBradleyisdraftedintohelp,buthismotivationsareunclear.Tommyisdangerouslyseducedbytheworldofintelligencepolicing,whileGracestrugglestodealwithherson’sabsence,andgrowingfeelingsforfellowofficerStevie.Asayoungloyalistthreatenstotakeoverthecity,theofficersfaceamajorganglandfeud–culminatinginaviolentanddevastatingconfrontation.

由《索尔兹伯里投毒案 The Salisbury Poisonings》主创Adam Patterson及Declan Lawn负责的6集剧《北爱警之光 Blue Lights》，灵感来自北爱尔兰警察的《北爱警之光》讲述在首都贝尔法斯特工作的菜鸟警察，只有几个月成长空间的他们得面临前线的压力及危险。