Danny and Baez grapple with a homicide investigation brought to their attention by Maggie, the medium who previously helped them solve a case; Frank looks for a way to help his ex-partner Lenny Ross when Lenny's ...
As Jamie and Eddie's wedding day approaches, Erin interviews a witness whose story leads her to doubt Eddie's honesty; Danny and Baez unravel the complicated love life of a young man who was murdered; Frank squabbles ...
Jamie gets Danny involved when he finds a homeless teen who claims his aunt was killed by her boyfriend. Meanwhile, Erin is angered when McCoy replaces her as the prosecutor on a case involving a corrections officer.
Danny and Baez look into the murder of a lower income resident living in a luxury building where a percentage of units are available for lower income housing. Frank disagrees with a detective friend of Gormleys.
A mob informant returns to the city to testify in a case for Erin, and Danny and Baez are tasked with protecting him. Elsewhere, Frank and Mayor Poole get into heated negotiations regarding benefits for police officers.
Baez is held hostage in an interrogation room by a distressed man who wants to see his daughter. Elsewhere, Garrett's son gets in trouble with the law, so Garrett turns to Frank for help, creating an ethical dilemma for the police commissioner.
Erin's unnerved when someone breaks into her apartment, and then she discovers her coworker was attacked. Elsewhere, Jamie and Eddie find a pipe bomb in a halfway house for addicts; and Frank investigates a charity that's supposedly helping the NYPD.
Eddie goes undercover for the first time when she tries to take down a kidnapping ring, which is luring in young women with websites for phony youth hostels. Elsewhere, Frank assists a woman who wants to confront the inmate who murdered her family.
A celebrity chef from reality TV is murdered and a suspect readily confesses to the crime, but Danny and Baez think there is more to the case. Jamie and Jenko investigate a bizzare assault and elsewhere a senator uses his friendship with Frank to ask for a favor regarding a DUI charge.
In the conclusion of the two-part Season 5 finale, one of the Reagans is shot by a gang member, and Danny pursues a suspect while trying to keep his emotions in check. To add to the complications, Danny has to find an inventive way to bring in witnesses.
A possible serial-killer case is assigned to Danny and Baez. Erin considers becoming a judge; a mayoral candidate claims that Frank has been secretly investigating her spouse; and Eddie confronts her dad.
Danny is interrogated by the District Attorney's investigator when his ex-partner is accused of planting evidence in order to wrap up a homicide case. Also, when radical anti-government activists threaten to publicly burn an American flag, Frank grapples with the limits of free speech.