Crews gets a new partner in the form of the lovely Gabrielle Union, and they investigate the death of a woman who spent years writing to a convict in prison. But she may have not been the only one.
In this episode, Charlie's past as a convict is a tool he uses to understand the mentality of some of the suspects, as they are ex-cons. But his past seems to no longer affect him as deeply as it did in the opening episodes. It is a part of his past, but not a part of his present.