When an unconscious young girl's admitted to the hospital's casualty unit, foul play's suspected by Duffy. The man with her later admits he picked her up and took her home for sex. They both show signs of carbon monoxide and she's a teenage runaway. Charlie shows more than a passing interest in Trish Barnes, a new member of staff. A father's outing with his two young children causes more problems with his ex-wife when their daughter is injured and a woman caught shop-lifting collapses but is distraught about her baby. Trish is called upon to help and when the police go to her home they find the baby has died. Beth discovers that she's going to be sued for negligence and is upset by Julian's lack of support.