It's one year on from the first series of Blue Lights and there's still crime to fight in Belfast city centre. Response officers Grace, Annie and Tommy are no longer wide-eyed rookies, and are beginning to feel the personal and psychological effects of relentless and punishing police work.
Showrunner Adam Patterson has revealed "one of the unifying themes about series two is how difficult it is to initiate change and our young loyalist rebel wants to change his home environment for the good but ends up having to do bad things in order to change that system".
Meanwhile Declan Lawn added: "The central theme of Blue Lights is idealism v pragmatism which is in the DNA of the show and in every character.
We all live in the space between the two; who we want to be and who we are.This series delves further into that. Everyone has ideals but they have to compromise them.