A leader of an Hispanic gang is found murdered inside the prison where he is serving time. His murder is made to look like the result of a simple continuing gang struggle for control of his turf and the proceeds of a pending huge drug deal. In reality, his murder is the result of the acts of the enraged lover of a female corrections officer who had been raped by the victim while she was a guard at another facility. It is basically a murder for hire since the actual act is performed by another, psychopathic inmate who is looking for favorable treatment for his son who just happens to be a chip off the old block, serving time in another prison. As usual, Briscoe and Green go after the wrong suspects and end up with egg on their face. McCoy takes on the corrections officers' union and makes no friends on this one. This blunder had to cost the city a fortune!