After a residents' meeting complaining about the drug problem on their estate, DI Galloway mentions that he had heard that an old illegal club has reopened in an abandoned theatre complex - this time dealing drugs. He asks a parent, Tombo Robinson, who used to be involved in the club, if he will infiltrate it to confirm Galloway's suspicions. Tombo reluctantly agrees, and meets with Galloway to tell him that a huge drug deal is going down that afternoon. Galloway quickly arranges a warrant, and sets about organising a huge raid on the club. The raid runs according to plan, but Tombo is stabbed by a dealer as he tries to let the police into the building. PC Edwards and Carver give chase to the dealer, but are alarmed when the suspect speeds off in a car bearing diplomatic plates. Galloway checks up on Tombo in hospital, and is shocked to discover that he has died and was a heroin addict. Returning to the station, Galloway is furious when Ch. Supt. Brownlow, a Home Office representative, and a diplomat from a small African nation request he relinquish the case to the government on diplomatic grounds. (thetvdb.com)