A distraught Acting DI Samantha Nixon searches desperately for her missing daughter, Abi, fearing she may be the next victim of the serial killer. TDC Brandon Kane's ex-wife leaves him with their two kids while she tends to her injured mother. Ordered by Supt. Okaro to assist Nixon in the search for her daughter, Kane leaves his unruly children in the care of CSU's Jim Carver and June Ackland. PC Reg Hollis searches for a Vietnamese pot-bellied pig stolen from a city farm. Abi Nixon turns up at Sun Hill, demanding to know who her father is. As PC Des Taviner and PC Gemma Osborne race their police cars across London to reach a call first, their radio traffic and then their cars are intercepted by a furious Supt. Okaro and Insp. Gina Gold, fresh from a meeting at New Scotland Yard.

Drummond escapes from hospital to find his son Alex, and doesn't waste any time in recruiting Best to assist his search. When he manages to locate Vince Foster, Foster informs him that the only way he will ever see his son again is if he delivers him Sid Wright on a plate. Meanwhile, Taviner and Murphy attend to a disturbance at a local brothel, but their own personal feelings for each other begin to get in the way of their work. Hunter and Becker discover the location of the car gang's hideout. Page attends Dr. Owen Preston's funeral, but during her speech, nearly blurts out that she was present when Owen committed suicide, until an audacious Bradford manages to step in and save her.

As PC Nick Klein recovers from his forced heroin overdose at the hands of Dennis Weaver's henchmen, Sgt. Dale Smith and PC Kerry Young try to prove Nick's innocence beyond doubt as his condition and his previous history with drugs make his testimony unreliable. Nick confronts DS Phil Hunter and accuses him of telling Weaver that he had been a drug addict. Polly Page's house is broken into, and she begins to suspect that her night of passion with journalist Frank Fisher may have been a big mistake as he is the main suspect, particularly after an expose on her murder trial appaers in the local paper. Kerry Young and PC Cameron Tait have a huge row at the pub after Smithy tells Tait that Young has slept with him and Nick Klein. As PC Gabriel Kent watches, Young accepts a lift home with Smithy.