This episode follows the midwives at the University Hospital of Wales as they look after mums who need additional medical support and care. Specialist midwife Sarah works in the antenatal day unit. Her patient, Lee, is 33 weeks pregnant and has been coming in to the unit for daily scans because her baby's growth has slowed down. Sarah's aim is to keep a close watch on Lee's baby and try to keep him in utero for as long as possible. A week later, Lee is admitted to hospital with signs of pre-eclampsia and the doctors and midwives have to act quickly.