Will is invited back to CID for the day to help DCI Donald with a difficult murder case. As he gets closer to the truth at work he's forced to face up to the realities of his behaviour at home. Can Will accept what he's become? Lonely Stella puts on a brave face as the Mullens celebrate Scarlett's birthday, but who is she missing most at the party? And Jimmy gets more than he bargained for when he collects the birthday cake. Show less