Lou's world starts to unravel as she faces the consequences of being a drug-dealing mother. Meanwhile, Gemma helps the police with the investigation against her husband, and Francesca attends a marriage guidance course in the prison.

Heavily pregnant Gemma is whisked into witness protection, but when she goes into labour and Andy tracks her down, Gemma's life hangs in the balance. Meanwhile, Francesca is getting more involved in Paul'scriminal dealings, Harriet is hoping to win the affections of the prison chaplain and Lou is counting down to her own imprisonment.