After Jim Dunbar loses his eyesight during a gunfight, the rehabilitated homicide Detective attempts to return to active duty at a new precinct. Facing opposition and doubt from his coworkers and Lieutenant, he is relegated to handling a car theft case with Detective Karen Bettencourt. Dunbar soon discovers that the recovered missing car might be connected to a larger ongoing serial homicide investigation.

The 8th precinct is distraught when one of their detectives from the anti-crime unit is found murdered. Carl Desmond was shot in the head and his body was thrown in a dumpster. His colleagues and grieving widow, Mary Beth suspects that his murder was an act of revenge by someone he had previously put away. Karen is put in charge of the case, as she and the rest of the detectives must tread carefully in the investigation into the murder of one of their own.

When Mary Beth's past infidelities come to light, Tom and Marty investigate a married man named Don Bellamy whom she was having an affair with. While going in a different direction, Karen and Jim put their reputation on line with other cops at their squad when their main suspect is Carl's partner, Eric who had put in a request for a transfer a week before the murder. In the midst of the investigation, a frustrated Jim confronts Marty who is purposely making things difficult for him by rearranging the squad so that he would walk

Nick receives an ultimatum from Jim to either reveal the dark past to Karen or he will do it for him. Infuriated by this whole no way out scenario, he promises instead to break off the relationship. Later after finding his car vandalized, a golf buddy of the deputy mayor uses that connection to involve the reluctant detectives of the 8th Precinct in his nasty battle with an ex-girlfriend for custody of their son. In the midst of all this, Greg Hermanson, an old friend of Jim who served with him in the Gulf War comes to visit and purge his soul of something that has been slowly eating at him for years.

After a recommendation from Dr. Galloway to temporarily put aside the problems in their marriage before going to couple's counseling, Christie and Jim set out on a quest to search for a fun and comforting activity to do that will bring them closer together.

Artie Steckle, the man who found Hank asks Jim to talk to his nephew, Pete who has given up on living his life to the fullest after gradually becoming blind due to a disease. Jim attempts to show Pete who wants no help and only to be left alone that there are options out there where he can learn to cope and live a normal life with his blindness.

Meanwhile, an elderly woman is found dead in her bedroom after it was consumed by an arson set fire. The main suspect is the landlord who is also a firefighter, which creates friction as it stirs up old feelings in a conflict of cops vs. firefighters when he accuses Marty of being bias towards him in this investigation due to his profession.

While Jim is having dinner with Christie at a restaurant, another patron makes a derogatory statement directed towards her. When Jim asks this person to apologize, the man refuses and then attacks him, which leads to an all out brawl in the restaurant. In the midst of all this chaos, the satchel containing Jim's firearm is stolen.

Unnerved by the whole situation, Jim seeks the help of his colleagues who all agree to search for the missing weapon. The issue of whether Jim should carry a gun or not, again comes into play as things go from bad to worse when it is suspected that his revolver might have been used by an unknown assailant to murder a 17 yr. old boy.

Dunbar investigates the murder of a boxing promoter, and tries to decide if he should give up carrying a gun.