Insp. Gina Gold and PC Gemma Osbourne visit a local school to investigate reports of drug dealing. Osbourne runs into a teacher friend of hers, Caroline Cotton, who passes on a pornographic tape she conficated from a pupil. Osbourne passes the tape on to CID, but when Caroline arrives at the station, Osbourne decides to take DS Phil Hunter down a peg or two by setting him up with her lesbian friend. Sgt. June Ackland investigates a possibly racial assault on pub landlady Aisha Danvers, and sends PCs Jim Carver and Cathy Bradford undercover in the pub, an assignment that raises a few eyebrows given Carver's history of alcoholism. After a failed obbo on a possible gun buy at the pub, Bradford and Ackland suspect Carver has started drinking again. A furious Carver sets out to prove otherwise, and discovers that Danvers has actually set up her own drug and guns racket on the Larkmead. Osbourne's plan backfires when DS Hunter turns up the next day like the cat that got the cream, and Robbie