PC Roz Clarke unsuccessfully applies for a police loan. PC Des Taviner buys her a pushbike and suggests she sell her scooter, but Roz is far from impressed. PCs Carver and Rickman find a young boy, Gavin Billson, overdosed on drugs, and CID investigate some of the local dealers. When it turns out Gavin overdosed on diamorphine, and after several dead ends, suspiscion falls on Dr Stuart Bremnar, a doctor at St Hugh's, who is also the boyfriend of Roz Clarke's friend Ruth. A review of the hospital's CCTV footage reveals Ruth herself sneaking into a storeroom, and Roz is forced to arrest her best friend.