PC Klein is offered the position of partnership officer, but he is shunned by the relief, who think he grassed Smithy up to get the job. Sgt. Cryer has a funny feeling about Frank Kennedy, and decides to do some digging of his own, and he encourages Smith to do the same. With Klein's help, Smith infiltrates the gang of youths intimidating the local residents, and discovers that the real estate firm Mather & Devine is indeed behind the harassment. Meanwhile, Cryer uncovers the fact that Kennedy was a notorious East End gangster named Ken Franklin who stored weapons for the Kray brothers, and that Kennedy's claim of shooting in self-defence is disproven by the forensic evidence and a statement from the other gang member. Smith is re-instated, Supt. Chandler approves his transfer to SO19, and Klein turns down the partnership officer job.

When the victim in yesterday's domestic disturbance turns up badly beaten and left for dead, her husband is adamant he had nothing to do with it. Mandy tells Cryer that the woman who was bashed, Cath Evans, was working as a prostitute, and that the Councillor's husband Justin was one of her clients. But Justin in turn, having admitted his deeds to his wife, says that he was seeing Mandy as well, and that on the night of the fire, she turned up late and had blood on her clothes. Meanwhile, Smith arrives at SO19 to find his new friend Julie also made the grade, but on their training course, treats her as the token female. When she beats him on the rifle range it causes friction, and their boss cautions that they have to learn to work as a team.