When a spate of bomb hoaxes begins to threaten peace and harmony in Sun Hill, Brownlow becomes eager to find the hoax callers and stop chaos from breaking out. Meanwhile, Galloway bets Cryer he is the perfect man to solve the case, recruiting Roach and Dashwood to help him. Cryer gives Carver the responsibility of showing a newly qualified officer, Higgins, the ways of Sun Hill - but a run-in with a local drunk who later accuses Carver of stealing his wallet leaves every officer on the uniform relief wondering if Carver is capable enough to do the job without bringing the social aspect into disrepute.

Boulton and Rawton attend the scene of a house fire, and not only does the chief identify the building as a brothel, he points at evidence that the girls were held hostage by the building owner. Hollis and Page attend when a girl is apprehended by shop security for stealing a jacket, and she admits to being a Turkish refugee who has been held against her will to work in the brothel. However, when Boulton identifies needle marks on her arms, he plays the brute to identify a friend of the girl's Maya, who he suspects started the fire to rescue the girls. Identifying a yellow sports car with black writing at the scene, suspected of being Maya's getaway car, and he soon calls around local brothels to identify a rival pimp who took Maya in. He identifies a pair of Turkish brothers, and when Rawton visits a potential witness, she finds herself in unexpected danger.