Donovan is forced to reveal his secret work to the rest of the precinct before it becomes common knowledge. His fellow officers have differing reactions to this news.

A landlord gets help from the precinct to evict his tenants. He wants to turn his building into expensive lawyer apartments. When one of his tenants gets a court order allowing him to stay they officers know that trouble is sure to start brewing very soon.

Elena, Jack's ex-girlfriend, is found dead in an alley, shot three times. The prime suspect is a Latvian businessman who she had often been seen with in a coffee bar.

Santoro is asked to help out his nephew with a few speeding tickets and ends up losing his temper with the highway cops and insulting them.

Doyle and Ray keep being called to the apartment of a couple who are continuously fighting.

Ann-Marie starts her first day as a detective and begins by organizing a raid on an apartment where an informant has told her two men are making bombs.

The precinct gets a new PAA, someone Phil remembers from his old precinct. He tells Santoro that she has a obsessive compulsive disorder that involves cleanliness and having to do everything four times. She is so annoying that she is always getting moved from station house to station house.

A member of the Latin Queens, a female gang, is found dead in her apartment building. Suspects are brought in, including a member who has been working undercover for two years.

Ray arrests a man who throws Hector over a bar and injures the man's ribs while doing so. They take him to hospital where a doctor is amazed at the injuries he has received.