内容简介：
As a detective working for an elite undercover squad, Dan 'Spider' Shepherd has lied, cheated and conned in order to bring Britain's most wanted criminals to justice. When a powerful drugs baron starts to kill off witnesses to his crimes, Shepherd is given his most dangerous assignment yet. He has to go undercover in a top security prison - a world where one wrong move will mean certain death. Soon he realizes that the man he is set to trap is even more dangerous than the police anticipated...