British diplomat Ian Porter is apprehended at Heathrow airport in possession of 20 kilos of heroin. Porter's unwillingness to co-operate leaves Scotland Yard Inspector Julie Hales believing he is doing business with Russian arms and drugs trafficker Sergei Krousov.

British diplomat Ian Porter is apprehended at Heathrow airport in possession of 20 kilos of heroin. Porter's unwillingness to co-operate leaves Scotland Yard Inspector Julie Hales believing he is doing business with Russian arms and drugs trafficker Sergei Krousov.