The police ombudsman investigates the team after a disastrous night shift. Helen uncovers a scandal, while a crisis at home has Grace doubting her career choice.
Quest roles:
Joanne Crawford(Helen McNally), Frankie McCafferty(Barney Nugent), Andrea Irvine(Nicola Robinson), Aoibheann McCann(Geraldine Gilroy), Gerard McCabe(Gary White), Peter Campion(Sully), Matt Carver(Cal Ellis), Nabil Elouahabi(Joseph MI5), Sandra Ni Bhroin(Nurse), Hugh Irvine(Constable Curran), Orla Graham(Kirsty), Lata Sharma(Handler), Curtis-Lee Ashqar(Barman), James Doran(Michael), Maurice Lee(Chloe's Dad), Helena Bereen(Valerie), Annabel Canaven(Andrea Brown), Brian Milligan(Fowler), Francis Morgan McCoey(Ryan), Paula McFetridge(Ombudsman (voice)), Alfie Manser(Weed Customer), Eimear Bailie(Chloe)