This episode explores the secrets of a good relationship. Kirstine and Phil have not spent a day apart in four years, but following an emergency during labour the pair find themselves separated. How will they cope? Thirty-two-year-old independent businesswoman Tyla doesn't need a man in her life - much to her mum Rhona's dismay - but as she awaits the arrival of her third child, Tyla starts to reconsider her romantic future. Spanish nurses 25-year-old Carlota, and 35-year-old Javier epitomise the perfect relationship, but the pair quickly realise that labour can be challenging even for the very best of partnerships.