Harriet is devastated when she realises Gavin is the victim of prison bullying. But is she prepared to smuggle drugs into the prison to buy his protection? Meanwhile, Francesca faces homelessness, and Gemma is about to discover something that will change her life forever.

As the case against her husband gathers momentum, Gemma continues to lead a double life; but how long before Steve gets suspicious? Meanwhile, Lou is desperate to be reunited with her son, and Francesca embarks on a risky plan to have illicit sex with her husband in the prison.