William Warwick has been promoted to Detective Sergeant but his promotion has meant reassignment, along with the rest of his team, to the Drugs Squad in Southwark, where they are immediately tasked with apprehending a drug dealer known as ‘Viper’ who is operating a drugs factory out of South London. Daunted by the task facing him and his team, Warwick catches a lucky break when he sees a known street-level dealer, who he recognizes from his school days