Helen's lax attitude to life and work and her constant clumsiness begins to cause tension between her and Nicky eventually causing her to move out and into Alistair's home. Gil's wife Denise is involved in a minor accident and is brought into Mercy with her two daughters. She asks Helen can she switch doctors to her and Helen agrees. Denise asks for a prescription for epilepsy drugs for her daughters and Helen writes her one without checking the family history. Nicky objects which starts a rift between her and Alastair. Nicky gets the family history and talks with ...