Mack is becoming increasingly suspicious of Katy and John Joe as they try to conceal the truth from him. Mack wants answers - and he wants them now! Niall comes to the rescue as Máire tries to keep Fia's secret under wraps, not wanting to bring shame on her family. Does Niall have Máire's best interests at heart or does he have an ulterior motive? Tadhg has little faith in John Joe's business acumen. Can John Joe prove himself? Bobbi Lee hopes to change Micheál's single status. Can she find the perfect match for him in Ros na Rún and will he agree to go on a date?