Supply and Demand

When junior secretary Peter Gleeson commits suicide after being exposed as being a homosexual, the team go undercover to investigate a private drinking club called the Golden Goose where they become embroiled in scandal, blackmail and tragedy.

Owner Pauline Monroe's sidelines in drugs and prostitution appear to be the key to unraveling the entire scam, but Hughes and McEwan come close to becoming embroiled themselves. As Edna discovers the truth, tragedy strikes when a drunken Monroe unleashes a gun on DI Brown.

DS Harper comes face-to-face with an old adversary when DC Frankie Li goes undercover as a martial arts expert as the team investigates a corrupt Hong Kong businessman, whose suspicious cargo being brought in a cheese van alerts the team to a much bigger operation involving locating the student catalyst for the Tiananmen Square riots.

As an important identity is finally revealed, and an attempt to rescue his granddaughter backfires, resulting in Harper taking out the prime suspect – as well as two other civilians.