Season 8 begins with Danny contemplating retirement until Erin enlists him to help her with a case involving her ex-husband. Meanwhile, Jamie and Eddie go undercover as a couple; and Frank butts heads with the new mayor of New York City.
Season 08, Episode 02 – ”Ghosts of the Past”
Frank receives an order from the mayor to attend a parade honoring a man who served time for conspiring in an attack against the police. Meanwhile, Danny investigates the return of a teen who suspiciously disappeared 13 years ago; and Jamie and Eddie help a young woman they believe is being exploited by a congressman.
Season 08, Episode 03 – ”The Enemy of My Enemy”
Erin’s trial against a notorious human trafficker is jeopardized when the presiding judge is mysteriously found dead. Danny and Baez are put on the case to investigate foul play. Meanwhile, Mayor Dutton opposes Frank’s public safety initiative, but City Council Speaker Regina Thomas devises a plan to help Frank bypass the mayor’s veto.
Season 08, Episode 04 – ”One for Sorrow”
Danny and Baez work the case of a detective who was gunned down prior to testifying against a career criminal. Meanwhile, Frank personally investigates when Garrett is attacked by a S.W.A.T. team outside his home; and Erin brings in a confidential informant against Anthony’s wishes.
Season 08, Episode 05 – ”The Forgotten”
Danny and Baez investigate the murder of a single mother whose ex-husband has a history of violence. Meanwhile, Frank deals with the fallout when Mayor Dutton eliminates solitary confinement in prisons; and Jamie’s efforts to save a young woman who overdosed on drugs lead to unexpected consequences.
Season 08, Episode 06 – ”Brushed Off”
A famous basketball player is found dead of an apparent drug overdose. Danny investigates and looks into the victim’s possible ties to a local drug gang. Meanwhile, Erin revisits the case of a man she may have wrongfully convicted years ago; and Frank is approached by Archbishop Kearns regarding an eviction matter that Jamie and Eddie are working on.
Season 08, Episode 07 – ”Common Ground”
A case turns personal for Danny when he works to protect a nurse, Faith Madson, from her violent ex-boyfriend. Also, Shelly Wayne, an acquaintance of Frank’s, comes to him with a theory regarding the death of an inmate, and Jamie and Eddie help deliver a baby.
Season 08, Episode 08 – ”Pick Your Poison”
Eddie’s judgment is clouded by her past when she arrests a loathed acquaintance from college on questionable charges; and Frank is hesitant to mar the spotless record of a member of the force, a decorated U.S. military veteran, who tested positive for marijuana.
Season 08, Episode 09 – ”Pain Killers”
As Danny and Baez join a narcotics task force to track down a drug supplier, Baez comes into contact with drugs and is soon fighting for her life from an accidental overdose. Also, Jamie and Eddie work to protect a rehabilitated sex offender whose neighbors are angry he lives in their apartment building; and Frank forms an unlikely alliance with Mayor Dutto.
Season 08, Episode 10 – ”Heavy Is the Head”
Erin is conflicted when Jamie and Eddie ask her to help drop old charges against a man, Parker Mack, who just bravely rescued a woman from a local hostage situation. Also, Danny and Baez work a case involving car thieves and discover the leader is Victor Lugo, a mobster they’ve dealt with before, and Baker receives a job offer.
Season 08, Episode 11 – ”Second Chances ”
When a journalist disappears while working on an exposé about an innocent man serving time for murder, Danny and Baez hope that reexamining the original case will help find her. Also, Frank reluctantly speaks out against an initiative led by Erin’s office to consider drug abuse as a disease first, and a crime second.
Season 08, Episode 12 – ”The Brave”
After Anthony is shot while interviewing a witness for an upcoming murder trial, Erin enlists Anthony’s archenemy, Danny, to find out who was responsible. Also, Jamie and Eddie get in the middle of a standoff between a police lieutenant and a developmentally disabled man posing as an officer, and Nicky prepares to take the police exam.
Season 08, Episode 13 – ”Erasing History”
When Henry is the key witness on Danny and Baez’s case, his meddling pushes Danny’s buttons until he leads them to valuable information. Also, Nicky shocks her family by siding with her activist friend, Chrissie, who defaced the NYPD flag at One Police Plaza, and Jamie and Eddie learn a parole officer is taking advantage of his power over parolees.
Season 08, Episode 14 – ”School of Hard Knocks”
When a student is shot by a rival gang member in his high school courtyard, Danny and Baez try to get a grasp on the situation to prevent a reoccurrence, but the principal recklessly takes matters into his own hands. Also, Erin tries to help a friend who is mixed up in an illegal gambling ring; and Gov. Mendez tries to frame Frank after one of his top legislative aides is shot by an NYPD officer.
Season 08, Episode 15 – ”Legacy”
Danny considers taking a new job that would ease his financial struggles after investigating the death of a wealthy man. Also, Nicky tries to avoid involving her family when she is sexually harassed by her boss at her new internship, and Garrett advises Frank to regain the public’s trust after a rookie cop is caught on video questioning a pedestrian’s immigration status.
Season 08, Episode 16 – ”Tale of Two Cities”
Danny and Baez investigate the murder of a man who was living a double life with two separate families, and Anthony tries to resist when Erin asks him to help investigate his old partner, whom she suspects of stealing drug money. Also, Frank deliberates between two candidates for the chief of transit position.
Season 08, Episode 17 – ”Close Calls”
After Danny’s brother-in-law gets caught up with the mob and steals Danny’s credit card, Danny forces him to take down the mobsters with Baez’s help. Also, Frank has Erin and Anthony investigate if his old partner is truly guilty of a crime; and Jamie is approached by an officer who wants his help getting reassigned from his undercover assignment at a mosque.
Season 08, Episode 18 – ”Friendship, Love, and Loyalty”
After a woman voices her outrage regarding the NYPD’s inability to find her son’s murderer, Danny reexamines the case, upsetting the original detective, Erin, and Anthony, who didn’t pursue the case due to lack of evidence. Also, Eddie is shot while on duty; Erin and her ex-husband, Jack, face off in court; and Frank contends with an angry police force when Mayor Dutton fails to defend them at a press conference.
Season 08, Episode 19 – ”Risk Management”
Danny and Baez race to find a missing girl who will die within 72 hours without her heart medication. Also, Jamie and Eddie are on the wrong side of an investigation after engaging in a car chase, Frank, Garrett and Gormley investigate the rise in the settlement of lawsuits against cops, and Sean wins an essay contest and receives a medal from former New York City mayor David Dinkins.
Season 08, Episode 20 – ”Your Six”
When Danny resorts to asking his incarcerated archenemy, Victor Lugo, for help locating a dangerous criminal who escaped from prison, Lugo refuses to assist unless he’s allowed to accompany them on the pursuit. Also, Frank subtly tries to convince Jamie to take the sergeant’s test, and Erin’s plan to go on a date with her ex-husband causes friction between her and Anthony.
Season 08, Episode 21 – ”The Devil You Know”
Frank goes head-to-head with a data-tracking company when they refuse to unlock the phone of a terrorist that may hold information regarding upcoming targets. Also, when Erin obtains information about an impending murder from a shady source, she gets Danny and Baez involved, despite the questionable agenda of the informant, and Jamie and Eddie try to locate a woman who kidnapped a newborn baby.
Season 08, Episode 22 – ”My Aim Is True”
The Season 8 finale: When a series of drive-by murders occur after six wrongly convicted men are released from prison, Danny and Baez wonder if they were orchestrated by the men as an act of revenge. Also, Frank combats the guilt he feels about these innocent men unfairly serving nine years in prison, and Jamie and Eddie find themselves in a life-threatening situation.