A young girl, Emma Finney, is attacked in the street and DC Kerry Holmes suspects a racial motive, as Emma and her family are gypsies living on a nearby waste ground. Holmes and an impatient DS Boulton are unable to get any information out of them, and Boulton even has Emma's older brother Michael arrested when he drives off with a rifle in his truck. Boulton has other things on his mind: he has an upcoming interview for a transfer to the Flying Squad. With Michael locked up for the night, Holmes worries about the Finneys' safety. As she watches their caravan, three men approach and firebomb it, Kerry barely manages to save them in time. Angry at Boulton's attitude to the case and his colleagues, Holmes arranges for an old friend, DI Long who is on Boulton's interview panel, to give him a real grilling and then pass the videotape on to her, which she gleefully shows to the rest of CID. Boulton is furious, but DI Deakin convinces him his attitude and methods are to blame for his colleag