Supt Meadows is determined to secure a confession to murder, but Insp Smith and DC Dasari are unable to persuade the gang-rape victim to co-operate with the investigation.

Insp Smith attends to a 14-year-old boy who has been fatally stabbed in a gang-related incident. DI Manson leads the investigation, and DC Webb calls on a former informant for assistance.

PCs Gayle and Knight try to help a young mother who is being threatened by a local mechanic, but she is too frightened to co-operate. Sgt Stone is determined to prove to his estranged mother that his late father was guilty of raping a probationer twenty years before.

When a 15-year-old girl who has been missing from home is found wandering the streets confused and traumatised, the team leap into action to identify her and discover what has happened.

An old friend of Mickey's is knocked off his bike and killed, and the victim's brother - a known drug dealer - approaches the detective with a request to investigate whether it was a case of murder.