Like Donnie Brasco, the legendary US cop who won the trust of the Mafia, Corbett risked his life every day: one false move and his cover would have been blown. The pinnacle of his career was an operation in the former pit town of Blyth, where there had been 15 drug-related deaths in 12 months. Leaving his wife and family, he spent five months undercover, wired up, winning the confidence of the dealers, and had to cope with having his life endangered by a corrupt officer. Corbett’s work led to 31 convictions and commendations from the Chief Constable and a Crown Court judge but, without any form of counselling, the stress took its toll and he was forced into early retirement. Now, betrayed by the force that sent him out on these dangerous missions, Corbett reveals the gripping story of life in the perilous world of an undercover cop.