Panic sets in as Katy searches frantically for the lost DNA results. She is relieved when told that the incriminating letter may have been thrown in the rubbish bin. Can Katy rest easy or will the offending letter be found? The green-eyed monster rears its ugly head when Laoise learns that Micheál intends to go out with Annette again. Will Laoise tell Micheál how she feels? Mo decides to get her life back on track and goes back to work Tigh Thaidhg's, much to Tadhg's reluctance and Colm's annoyance. Can Mo prove that she is more than capable or will her illness get the better of her?