Episode 4

In the concluding episode, the famous recruits are assigned to specialist police units for their final shifts. Haunted by events in her own past, Penny Lancaster is determined to help CID get justice for the victim of a brutal assault. Sandi Bogle is shocked by what she discovers working with a team tackling drug crime. And Katie Piper confronts her worst fears, when she has to run into a burning building to help rescue its residents.