Hayward breaks down during a talk with primary school pupils, when he is forced to talk about the death of his sister. Gilmore is not happy, but the teacher thinks Hayward's sensitivity will help the students get the message, and may also help them trust Hayward enough to report a bully. An old friend of his sister's asks him out, although when he meets her at a gallery opening, Hayward thinks her friends are dealing drugs. Klein and Hayward find the bully, "Red", who has been using two fierce dogs to steal money and mobile phones from school children. They trace the dogs to the flat of drug-addicted prostitute Stacy Dodds, and a search of her flat uncovers a large stash of heroin. (thetvdb.com)