The Bill: In The Know

The team discover that Mark Wilson is forcing his brother Shaun's girlfriend, Ria, to smuggle a phone into the prison where Shaun is doing time for drug offences. One of the prison officers, Josie Hibbert, is a friend of Leon's. Can they bug the phone and persuade her to take it in? Then there is an altercation in the prison visiting room where Shaun has attacked Ria. Listening in on Shaun's phone calls to his brother, the officers realise that he's planning a hit and Ria is the target.