P.C. Haynes volunteers for ""duty elsewhere"", undercover as a driver for Neville Tubbs, leader of a Yardie gang in South London. A man has just been murdered and mutilated, and Rita, a girl from Tubbs' club tells Haynes she witnessed the killing. Gaining Tubbs' trust, Haynes is asked to transport a package to a meeting across town. He is stopped by two police officers, but manages to get away after telling them he's in the Job. Haynes delivers the package, but is recognised as a cop by a Brixton Yardie. The police raid the place before Haynes is hurt or killed, but he is horrified to discover the package he carried contains the murder victim's hands.

A young woman is taken to hospital in a coma after a drug overdose - she is D.I. Burnside's god-daughter, Tracey. Burnside orders Tracey's boyfriend, nightclub manager Terry Palmer, brought in for questioning. Drugs are found in Palmer's flat but he denies giving them to Tracey. D.S. Roach tries to convince Burnside that he's too emotionally involved in the case. Tracey dies and it looks like she committed suicide. Burnside charges Palmer with possession and intent to supply. A wedding party is brought into the station after the bride assaults the bridesmaid for having sex with her husband. In addition to the assault charge, it appears some of the wedding presents are stolen goods.

Roache brings in a man suspected of handling stolen car radios. Yorkie and Reg are going to the soccer. Reg with the result of the relief and Yorkie undercover in a group of football thugs.

Dashwood is moaning because Greig is playing his clarinet in the office. Roach is having a drink with a married woman and after she leaves, he recognises a man whose car has broken down as the ex-commander of the murder squad who roach is convinced convicted the wrong man. Meanwhile back at the station Dashwood discovers that Roach is due in court in the morning and approx 40 witnesses need to be warned.