Danny and Baez race to find a missing girl who will die without her heart medication; Jamie and Eddie are on the wrong side of an investigation after engaging in a car chase; Sean wins an essay contest.

After a mafia-related mass casualty, the team is tasked to keep the peace at the hospital; Lucy and Celina work together to investigate the suspects behind the attack; Tim and Aaron embark on a metro ops mission.

The top two home cooks compete for a chance at the title of MasterChef Canada and $100,000.

Jamie Oliver shows how to make Asian-style salmon, noodle broth, and beansprout salad.

In thirty minutes Jamie Oliver makes killer jerk chicken, with rice and beans, refreshing chopped salad, and char-grilled corn.

Mary makes her favorite pub foods at home; antojitos with cheesy pepper filling rolled up in fried tortilla; beer battered cheese curds get a Canadian mapley twist; baked chipotle jalapeño popper dip with a crunchy toasted topping.

Tips for making fish and chips.

Danny resorts to asking his incarcerated archenemy for help locating a dangerous criminal who escaped from prison; Lugo refuses to assist unless he's allowed to accompany them on the pursuit; Frank tries to convince Jamie to take the sergeant's test.

Frank locks horns with a data-tracking company when it refuses to unlock a terrorist's phone that may hold information regarding upcoming targets; Erin obtains information about an impending murder from a shady source; a woman kidnaps a baby.

The top two home cooks compete for a chance at the title of MasterChef Canada and $100,000.

Mary and her guests prepare the ultimate holiday feast; Jann Arden surprises Mary's audience with giveaways; the cast of "We Will Rock You" performs.

Jamie Oliver shows how to make Asian-style salmon, noodle broth, and beansprout salad.

In thirty minutes Jamie Oliver makes killer jerk chicken, with rice and beans, refreshing chopped salad, and char-grilled corn.

Tensions are high during a Face Off as teams sweep into a Switch Back in Trois-Rivières, Que.; the detour leaves some tongue tied, while others get into a paper jam; at the roadblock teams struggle to hold their horses.

Canadian chefs compete in culinary challenges until only one remains.

The remaining chefs must elevate their dish by frying their entree, a process that proves difficult to many.

The top two home cooks compete for a chance at the title of MasterChef Canada and $100,000.

Tensions are high during a Face Off as teams sweep into a Switch Back in Trois-Rivières, Que.; the detour leaves some tongue tied, while others get into a paper jam; at the roadblock teams struggle to hold their horses.

Denise Nurse helps a couple with four children navigate Derbyshire's rural housing market.

Sparks fly between a tech executive and her charming childhood crush as they work together to revive her grandmother's festive holiday traditions.

Officer Nolan and Celina take on a special case; Monica enlists help to identify her attackers; Lopez and Harper discover a connection to the trail of crimes.

The remaining chefs must elevate their dish by frying their entree, a process that proves difficult to many.

Danny resorts to asking his incarcerated archenemy for help locating a dangerous criminal who escaped from prison; Lugo refuses to assist unless he's allowed to accompany them on the pursuit; Frank tries to convince Jamie to take the sergeant's test.

Sparks fly between a tech executive and her charming childhood crush as they work together to revive her grandmother's festive holiday traditions.

Denise Nurse helps a couple with four children navigate Derbyshire's rural housing market.

Frank locks horns with a data-tracking company when it refuses to unlock a terrorist's phone that may hold information regarding upcoming targets; Erin obtains information about an impending murder from a shady source; a woman kidnaps a baby.

Officer Nolan and Celina take on a special case; Monica enlists help to identify her attackers; Lopez and Harper discover a connection to the trail of crimes.

The family argues over Danny's questionable tactics as he searches for a missing girl; Jamie starts his new life as a cop.

A good Samaritan with a police record takes action against a terrorizing subway criminal, forcing the Reagans to weigh the rights and wrongs of vigilantism.

Danny, Erin and Frank work together to seek justice when the main suspect in a rape case is protected by diplomatic immunity.

When an off-duty police officer is killed during a diamond heist, the entire NYPD searches for the person responsible.

The Reagans argue the advantages and disadvantages of profiling; Danny, Frank and the rest of the NYPD search for a homemade bomb about to detonate.

Three teenagers die from drug overdose, and Danny sets out to find their narcotic source and bring the responsible to justice.

The family questions Erin's tactics when she tries to take down a gang leader by using his law-abiding brother as bait.

After witnessing a crime in progress, Jamie pursues a suspect; Danny has to help Jamie avoid an internal affairs investigation.

Erin becomes the subject of a personal and deadly vendetta when a reviled rapist and murderer she put away is released from jail.

Danny investigates when a doorman at a nightclub is murdered; Frank makes a decision about a former partner's future.

Danny and Jackie investigate the murder of a high-end escort after her body is found floating in the East River.

Danny must delve into the family politics of the Russian mob while investigating the death of a gangster's son; Erin becomes involved in a high-profile corruption case.

Danny investigates the shooting of an undercover counterterrorism agent who was involved with infiltrating a sleeper cell.

When a girl is kidnapped, Jackie and Danny suspect her drug-addicted boyfriend is responsible; Erin's relationship with her boss takes a step forward.

When vintage fashion devotee Caro Cartwright agrees to harbor her childhood nemesis turned couture heiress Philippa Levreaux, fireworks explode. They soon help each other with meeting challenges, being their best selves, and fulfilling their dreams.

Erin and Kelly agree to temporarily care for a baby who mysteriously shows up on their doorstep days before Christmas. However, as the couple spend more and more time with the boy, they start to realize they want to adopt him for themselves.

When vintage fashion devotee Caro Cartwright agrees to harbor her childhood nemesis turned couture heiress Philippa Levreaux, fireworks explode. They soon help each other with meeting challenges, being their best selves, and fulfilling their dreams.

Erin and Kelly agree to temporarily care for a baby who mysteriously shows up on their doorstep days before Christmas. However, as the couple spend more and more time with the boy, they start to realize they want to adopt him for themselves.

When a girl is kidnapped, Jackie and Danny suspect her drug-addicted boyfriend is responsible; Erin's relationship with her boss takes a step forward.

Frank is lucky to survive a stranger's assassination attempt, an act that prompts a citywide manhunt.

A young girl is murdered at a debutante ball; Danny gets into an fight with his sister for bringing Nikki to a crime scene.

Danny vows to find the killer of a war hero who was homeless; false information about Frank leaks to the press.

After Danny witnesses a murder, a member of his family is put in jeopardy in an attempt to stop him from testifying.

Jackie and Danny investigate when a reporter and Linda's niece, a runway model, both collapse at a fashion show.

Frank's distress rises after the press makes a big fuzz out of the killing of a tourist right in front of a trendy Lower East Side restaurant.

An alcohol and drug addict comes under suspicion when his family is murdered; when Jamie's gun disappears, he believes that he is being set up.

In an effort to expose the Blue Templar, Frank decides not to report a drug bust case that reveals dirty cops.

Frank is put on the spot when one of the mayor-elect's supporters is found dead; Jamie goes under cover at a bar.

Danny must face an internal affairs investigation after shooting a cop who failed to identify himself.

Danny makes a discovery about an attempted bank robber's past; Jamie starts working with a new partner.

Erin reopens a rape case Frank worked on 18 years ago; when three teens are murdered, Jackie and Danny can't determine an obvious motive.

Danny tries to investigate a case while having a romantic weekend with Linda; Jamie goes under cover to infiltrate a crime family.

Jamie and Renzulli are injured by a church's security team while responding to a 911 call, and Frank must deal with the fallout.

Jackie goes under cover as a prostitute to catch a serial killer; Erin meets a man at an art gallery.

Jackie and Danny think a young woman was forced to commit suicide; Frank clashes with Mayor Poole over a threat to the city; Henry has a heart attack.

A dangerous ex-mobster helps Danny with cold cases in exchange for leniency for his son; Jamie searches for a secret about the Sanfino family.

When Erin's informant is murdered, she can't help but blame herself for the death and work to help Danny discover who killed him; Frank deals with public backlash against an officer.

Jackie and Danny investigate a murder at a diner, where a witness claims a uniformed officer fled after shots were fired.

Danny and his family have an encounter with a gunman; Frank prepares to say goodbye to a friend he worked with at ground zero.

After a wealthy woman dies of a heart attack, the daughter claims God told her that murder was the true cause of her parent's demise; Frank investigates a rumor about a priest.

When a man's family is beaten and robbed in front of him, the Reagans debate how far they would go to protect the ones they love; Frank feels conflicted when a college student is arrested at a rally.

When a family friend, an undercover detective, is murdered, Danny embarks on a relentless search for the killer.

When a reporter friend of Frank's is almost attacked while investigating a story, Danny and Jackie try to find the would-be attacker; Jamie makes headway in his undercover case.

As Erin prosecutes a woman accused of murder, the defendant's attorney is slain, and Danny is asked to investigate; things get heated when Danny is questioned on the stand.

When a weapon linked to a crime is brought into the NYPD's gun buyback program, Danny must decide whether to arrest the suspect or follow the "no questions asked" policy.

The son of a firefighter whose death was ruled a suicide convinces Danny to reopen the case; Jamie worries that the press coverage of him rescuing a baby from a burning building will compromise his cover.

When an attempt is made on the life of a witness in Danny and Jackie's care, they realize the task force has a leak; Erin receives a job offer that would have her working with her father.

Jackie and Danny look into the suspicious death of an investor; when the Sanfinos order a hit on Jimmy Riordan, Frank puts Jamie under house arrest.

As Frank races to stop a biological weapon attack on the city, he tries to hide the threat of danger from his family; Jamie and Danny's conflict comes to a head.

A criminal from Danny's past kidnaps Jackie; Jamie meets his new partner; an officer accidentally shoots an innocent man.

Mary Berg explores lifestyle trends, do-it-yourself projects, home renovations, recipes and more; featuring celebrity guests, influencers and everyday heroes.

When two murder victims turn out to be members of the same group, Danny suspects a serial killer; Erin faces off with her ex-husband in court.

A bride is murdered on her wedding day in a gang shooting; when Vinny performs an unjustified stop, Jamie questions his partner's methods.

Soon after Frank honors a detective with an award for his undercover work in Malaysia, the detective is captured by a Malaysian drug lord; Henry accompanies Jamie on a ride-along.

Erin asks Danny to protect her key witness, a notorious photographer, after a nearly fatal hit-and-run accident; Vinny and Jamie go after a drug operation.

When a man is stabbed by an attacker dressed as the spirit of death, Danny investigates a voodoo community; Garrett tells Frank about a dark secret; Nicky and Erin take Jack and Sean trick-or-treating.

Danny finds a murdered student at a college campus; after reconnecting with a former law-school classmate, Jamie has a life crisis; Erin tries to give Nicky some freedom.

Linda helps with a shooting investigation when she hears the victim reveal who was responsible; Jamie is enraged when Henry is mugged.

When two different people driving gas-guzzling vehicles are killed by a sniper, the city thinks a radical environmental serial killer is responsible; Danny's son is severely injured in a bicycle accident.

Jamie's career hangs in the balance when he shoots an armed man in a tourist spot, leading Danny to conduct an investigation into the gunman.

When Danny is pulled over because his car matches the description of one involved in a drug deal, police find cocaine in his trunk; Danny's family rallies to come to his defense.

Danny investigates when a man covered in rat bites is thrown from a moving vehicle; Frank deals with a bigoted radio host who will be working in New York.

When a Hasidic Grand Rebbe and his new appointee both die, Danny investigates members of the Hasidic community.

When an incident in the projects leads to the death of a 10-year-old boy, Danny's reaction lands him in anger-management class; Frank tries to help a young Turkish woman avoid persecution.

Danny and Erin investigate a cold case in which a rich and powerful man allegedly attacked his girlfriend; an injury during a pick-up game leads to a lawsuit.

An off-duty cop is disarmed by bank robbers and an innocent bystander is wounded; Frank starts to fall for a woman from ACLU.

When the same tragedy occurs to multiple people in New York, Danny must determine what connects them and who is responsible; Frank tries to help a friend face his alcoholism.

When a devout young woman is murdered, Danny questions her family; a secret relationship is uncovered.

When two Wall Street brokers are killed during drug deals, Linda bars Danny from questioning a wounded accomplice until after the man has had surgery.

Danny is suspicious when he encounters a disoriented man covered in blood; Jamie helps an off-duty officer conceal his intoxication after apprehending an armed robber.

Danny is upset when a woman he promised to help commits suicide; the Reagan family suffers a loss due to a gang.

When a family friend is murdered, the Reagans band together to take down the leader of the gang responsible; a second crisis sends Frank reeling.

Frank pushes to have a cop killer brought to justice, but Erin drops the charges and releases the suspect due to lack of evidence.

Movie star Russell Berke, who researched a role by shadowing Danny, becomes the victim of a stabbing.

Mary Berg explores lifestyle trends, do-it-yourself projects, home renovations, recipes and more; featuring celebrity guests, influencers and everyday heroes.

A teen girl dies after she is seemingly pushed in front of a subway car by a homeless man; Frank is irritated by having to meet with the new inspector general (Bebe Neuwirth).

Danny and Baez think a girl has been kidnapped, but her mother denies it; Frank visits a priest who was arrested for a DUI.

Jamie's conduct is questioned when a suspect he was pursuing is fatally injured; Baez goes under cover to investigate a drug dealer - the fiance of Danny's ex-girlfriend (Charisma Carpenter).

The community and the mayor scrutinize Frank's department when an officer is accused of using excessive force; a Wall Street executive who was deeply in debt is murdered.

Frank is put in danger when his dinner companion, mob lawyer Angelo Gallo, is shot; Danny is a juror in a murder trial.

Baez's estranged brother is the primary suspect in a homicide; a woman may have had a hand in her husband's death.

Danny and Baez meet with resistance while investigating a bombing; Frank deals with political fallout after a man punches an aggressive officer.

Danny's loyalty is tested when he has to investigate a childhood friend for possible ties to a mob family; Frank thinks a recent judicial ruling may be responsible for a rise in crime.

Danny tracks the distributor of a new, deadly type of heroin; Frank does everything he can to help Danny get the drug off the streets.

Danny and Baez search for a veteran who may have PTSD; a woman seeking justice for her murdered daughter catches Frank off-guard during a press conference.

A popular drag queen and reality-TV star is found dead in a park; the mother of an accused man abducts Erin.

A kidnapping investigation brings back bad memories for Danny, who worked a similar case years ago; Frank and Inspector General Peterson butt heads.

A woman threatening to kill herself and the man who murdered her parents calls Danny; Frank goes on Sean's class field trip.

Danny and Baez search for teenagers who have been punching unsuspecting people - including a pregnant woman - in the head; Frank worries that promoting an officer will be viewed as favoritism.

A woman is killed by a dose of lidocaine after a secret plastic surgery; Jamie is privately assigned a cold case; Erin decides to try speed dating.

A college professor involved with a questionable scholarship program is murdered; Danny is investigated for ethical and procedural violations.

Erin investigates a case involving a police officer accused of killing a suspect in custody; Jamie encourages Eddie to forgive her father.

When an undercover detective from Danny's precinct is killed, Frank learns the detective had a big secret; Eddie and Jamie help Nicky find a former classmate who is now homeless.

Danny uncovers shocking information while investigating a case against orders.

Danny must track down the drug cartel that attacked a convoy transporting drugs to be incinerated, leaving Baez seriously injured; Frank must tread carefully when a lieutenant's actions cause controversy for the police department.

Jamie stands up for a fellow officer who is being ostracized for testifying against her partner; sports analyst Boomer Esiason makes a difficult request of Frank.

When an officer is outed and his partner refuses to ride with him, Danny and Baez are asked to work with new partners temporarily; Eddie and James try to steal a collar from a pompous detective; Frank speaks out about equality on the force.

Frank is put in a tough spot when Danny is charged with using excessive force; Jamie brings a homeless man to the hospital and hits it off with an attractive doctor.

Mary and her guests share their favourite crowd-pleasing recipes for your holiday table.

Danny and Frank must find enough evidence to finally put away an international felon who has a history of walking away from charges; Erin considers going into private practice; Danny and his new boss butt heads.

Frank is taken by surprise during an on-air interview; Danny and his new boss clash as they investigate a drive-by shooing.

When an officer's body camera malfunctions during an altercation, Frank is faced with public backlash; Baez and Danny step in when a witness is denied protection by the U.S. Marshals Service; Erin looks into a rape claim made by a friend's daughter.

When three prominent community leaders are murdered, they seem to be casualties of hate crimes; after being mugged, Linda decides to carry a gun.

Frank looks for evidence against a suspected cop killer; Danny and Baez investigate the murders of stars of adult films.

When a group of highly trained Army veterans robs a bank, Danny feels conflicted; a street artist is responsible for a bomb scare in a subway.

A homeless teenager claims his aunt was murdered by her boyfriend; Erin is replaced on a case involving a corrections officer.

When a lifestyle guru's carefully crafted, fictional perfect family is suddenly expected to appear on a live Christmas Eve special, she recruits friends and neighbors to pose as her family - including her best friend, who still has feelings for her.

Sparks fly when an executive and a strategist are paired together to work on a sales pitch. As they battle it out, their personal lives collide with their professional ambitions, and neither expects that the key to success might just be each other.

When a homeowner shoots an intruder, surprising information is revealed; Erin starts to doubt herself when a 12-year-old case is reopened.

A resident of the low-income section of a luxury apartment building is murdered; Frank is upset with a detective who takes advantage of legal loopholes.

Erin must bring a mob informant back to New York to help with a case after losing her star witness; Frank and Mayor Poole debate about police officer benefits.

When Baez serves a distraught man with a restraining order, he holds her at gunpoint in an interrogation room; Garrett asks Frank for help.

An unknown assailant breaks into Erin's apartment; Eddie and Jamie find a pipe bomb in a woman's apartment; Frank investigates a charity soliciting a donation from the NYPD.

Eddie goes under cover to investigate a kidnapping ring that targets young women through fake hostel websites; a woman Frank met early in his career wants to meet the inmate who killed her family.

An investigative journalist refuses to give up a source, even when the source admits to committing murder; Danny works with a troubled teenager as part of a NYPD program intended to help troubled youth.

When a suspect confesses to murdering a celebrity chef, Baez and Danny don't believe him; a longtime friend's request for help puts Frank in a tough position.

Frank orders everyone to help investigate when NYPD Deputy Chief Donald Kent and his wife are gunned down in what appears to be a gang hit.

Danny fights to control his emotions as he tries to track down the gang member responsible for shooting a member of the Reagan clan.

After a terrorist attack takes place in the Middle East, a threat to New York may be next, putting Frank on high alert.

Danny receives a chilling message from a possible serial killer; Erin considers applying for a judgeship; mayoral candidate Katherine Tucker (Mary Stuart Masterson) thinks Frank is secretly investigating her husband.

Stunning holiday home transformation and fashion makeovers; Scott McGillivray surprises Mary's audience; the cast of "The Sound of Music" performs.

One of Erin's informants leaves witness protection to give his former boss an alibi; Frank and the New York City fire department commissioner get into a war.

Danny joins the search for two escaped convicts after learning that one is someone he helped wrongfully imprison.

Camera footage appears to show Jamie committing police brutality at a demonstration; a civil rights attorney claims a rape case includes drummed up charges.

A famous car from a classic film is stolen; an order from the acting district attorney puts Frank and Erin at odds.

Linda is concerned when an elusive serial killer starts threatening her, Danny and their kids; during a hostage situation, Jamie challenges a superior officer.

DA investigator Anthony Abetemarco (Steve Schirripa) helps Erin when she is forced to take a case from a colleague, ADA Kelly Blake (Diane Neal); Eddie and Jamie pose as an elderly couple in order to catch a gang.

Danny's former partner is accused of planting evidence in order to close a murder case; anti-government activists threaten to burn an American flag.

Frank worries when his first partner announces plans to publish a book containing stories of their early days on the force; Jamie and Eddie face choices that will affect their futures in the department and their relationship.

A mobster is found shot in his car and his low-level errand boy is tied up in the trunk; an NYPD officer asks for a new shield number - the same number as Frank's deceased son Joe.

A respected, recently retired NYPD lieutenant is accused of shooting potential muggers on the subway; Baez and Danny try to arrest a drug dealer responsible for a murder Baez witnessed as a child.

Multiple women take credit for murdering the man they worked for; Frank and his priest clash over how to deal with a boy who has been stealing from the church; Nicky gets into trouble.

Erin struggles with guilt when a man she set free is suspected of killing a cop; Frank and Mayor Poole face off regarding Frank's reappointment as commissioner; a police officer disappears.

Linda asks Danny and Baez for help when a co-worker has trouble with an angry ex; Erin's former mentor, a judge, has been handing out unfair sentences since the death of his wife; Frank deals with an outspoken city council speaker.

Jamie and Danny have different opinions on how to handle a reckless rookie; Erin tries to help Anthony after he's conned into making a bad investment.

Frank and Danny try to help a rehabilitated ex-con when he becomes involved in the murder of an enemy; a prosecutor withholds the location of an alleged killer from Erin as she prepares for the trial.

While hunting for a gang of robbers, Baez teams up with a detective with whom she shares a romantic past; an officer acquitted of killing a young boy is up for a promotion.

An investigation becomes personal for Danny when a serial killer attaches a message for him on his latest victim.

When a witness in a murder trial flees out of fear of retaliation, Erin and Anthony must find him and convince him to testify; Garrett encourages Frank to attend the Police union party; Danny and Baez investigate a robbery at a convenience store.

Frank, the mayor, Erin and the DA's office deal with public outrage when a grand jury fails to indict an NYPD officer for the controversial shooting of a teen, which was caught on video.

Robert Lewis obtains new evidence against Danny in the shooting case of Thomas Wilder; Jamie and Eddie respond to a drunken driving accident involving a public figure; a slain police officer's wife asks Frank to keep her son out of the police force.

A stray bullet strikes an elderly woman in her home; Frank faces ridicule after he disciplines a disrespectful cop; Erin tries to help Anthony with a case that's personal to him.

A traumatized young woman who was held hostage is reluctant to press charges; a prominent NYPD fundraiser becomes a PR nightmare for Frank; Jamie is offered a job on a TV show.

Danny and Frank enlist the help of Detective Anthony Abetemarco to get justice for Lt. Gormley after a mob attacks him outside his home; Eddie and Jamie witness a dishonest arrest; Danny looks for a witness to testify against a gang leader.

Mary's Birthday! Chuck Hughes makes a special meal for Mary; bucket list birthday travel; Mary gives her staff a creative challenge; Magic Matt.

Frank deals with a whistleblower, who claims to have evidence of abuse throughout the NYPD; Danny and Baez investigate a woman who was hit by a car.

Danny has to work with Anthony to find the killer of a witness; Robert Lewis tries to force Frank to publicly support the Attorney General's investigation into the use of excessive force by police.

A woman becomes the prime suspect in the murder of her ex-boyfriend; Eddie is jealous when Jamie allows a young woman to crash at his apartment; an off-duty sergeant fails to intercede during a robbery.

Frank is left with little information to find a missing boy when a conflicted priest refuses to break the seal of confession; Danny and Baez look into the death of a socialite with a secret life; Jamie and Eddie attend a wedding.

The son of an outspoken critic in the African-American community is murdered; a convicted felon's cause of death doesn't match the injuries he received when the prisoner transport van carrying him crashed.

Eddie and Jamie get involved in an adoption case between birth and adoptive parents and ask Erin to help settle the dispute; Frank investigates reports about NYPD cadets cheating on psychological exams; Jack plans to enlist in the Marines.

Danny takes a side job as a bodyguard for a released ex-con who took the fall for someone else; Gormley's wife asks Frank to give Gormley a bigger command position; Jamie and Eddie reflect on their relationship.

Frank intervenes when diplomatic immunity complicates a child abuse case; a robbery takes place while Eddie and Jamie are on a double date, and they are forced to take action.

Danny and Baez investigate the murder of a gang leader and learn the accused shooter is an ex-con who is romantically linked to his parole officer, who might be assisting in a cover up.

Danny and Baez investigate the murder of a man who killed a mother and son years earlier while he was driving drunk; Anthony is conflicted when Erin asks him to wear a wire to incriminate a friend.

Linda's brother, Jimmy, gets into trouble with the mob and asks Danny to help him stay safe; the lawyer of a wrongfully arrested man demands that NYPD officers' disciplinary records be made public; Nicky goes on a ride-along with Jamie.

Jamie and Eddie suspect foul play when they respond to a distress call from a woman having an allergic reaction to her lifesaving medication; Erin learns that a man she convicted of a crime years earlier might be innocent; Frank handles a PR crisis.

An ex-NYPD officer goes missing the day after she reveals to Danny her plans to make amends to the woman she and her partner wrongfully convicted years ago; Frank faces a dilemma when one of his peers refuses to retire.

Erin faces off against her ex-husband in court when he represents the person she is attempting to convict of murder; a mother accuses the NYPD of being negligent in solving her son's murder; Jamie rides with a new partner.

A witness in a former case of Erin's asks her to help shut down a drug operation; while investigating a teen's suicide, Danny and Baez find clues that suggest the death was a homicide; Frank looks into potential misconduct in the mayor's office.

Danny and Baez work with two Russian operatives to search for a dangerous Russian who entered the U.S. on a diplomatic visa; Frank gets involved in a sensitive case involving Archbishop Kevin Kearns.

A Mexican drug cartel targets Danny when he intercepts a shipment of several million dollars; Jamie goes after a serial killer who preys on the elderly; Mayor Poole confides in Frank that he plans to retire.

Erin's trial against a human trafficker is jeopardized when the presiding judge is found dead; Mayor Dutton opposes Frank's public safety initiative, but a plan is devised to bypass the mayor's veto.

Danny and Baez investigate a case of a detective who was gunned down prior to testifying against a career criminal; Frank personally investigates when Garrett is attacked by a SWAT team outside his home; Erin brings in a confidential informant.

Danny and Baez investigate the murder of a single mother whose ex-husband has a history of violence; Mayor Dutton eliminates solitary confinement in prisons; Jamie's efforts to save a young woman who overdosed on drugs has unexpected consequences.

A famous basketball player is found dead of an apparent drug overdose; Danny looks into possible ties to a local drug gang; Erin revisits the case of a man she may have wrongfully convicted years ago; Frank is approached by Archbishop Kearns.

A case turns personal when Danny works to protect a nurse from her violent ex-boyfriend; an acquaintance of Frank's comes forth with a theory regarding the death of an inmate; Jamie and Eddie help deliver a baby.

Eddie's judgment is clouded by her past when she arrests a loathed college acquaintance; Frank is hesitant to mar the spotless record of a member of the force who tested positive for marijuana.

Danny and Baez join a narcotics task force to track a drug supplier; Baez comes into contact with drugs and gets an accidental overdose; Jamie and Eddie work to protect a rehabilitated sex offender; Frank forms an unlikely alliance with Mayor Dutton.

Jamie and Eddie ask Erin to drop old charges against a man who bravely rescued a woman from a local hostage situation; Danny and Baez work a case involving car thieves and discover the leader is a mobster they've dealt with before.

When a journalist disappears while working on an exposé about an innocent man serving time for murder, Danny and Baez hope that re-examining the original case will help them find her.

Anthony is shot while interviewing a witness; Erin enlists his archenemy, Danny, to investigate the case; Jamie and Eddie get in the middle of a standoff between a police lieutenant and a developmentally disabled man posing as an officer.

When Henry is the key witness on Danny and Baez's case, his meddling eventually leads them to valuable information; Nicky shocks her family by siding with her activist friend; Jamie and Eddie learn a parole officer is taking advantage of his power.

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; the principal, Darryl Ward, recklessly takes matters into his own hands.

Danny considers taking a new, more profitable job after investigating the death of a wealthy man; Nicky tries to avoid involving her family when she is sexually harassed by her boss at her new internship.

A man living a double life with two separate families is murdered; Erin asks Anthony to help investigate his former partner; Frank deliberates between two candidates for the chief of transit position.

Danny forces his brother-in-law to help Baez take down the mobsters he's mixed up with; Frank suspects his old partner is guilty of a crime; Jamie is approached by an officer who wants help getting reassigned from his undercover assignment.

A woman voices outrage over her son's unsolved murder; Danny re-examines the case; Eddie gets shot while on duty; Erin and her ex-husband face off in court; Frank deals with an angry police force after the mayor fails to defend it.

Danny and Baez race to find a missing girl who will die without her heart medication; Jamie and Eddie are on the wrong side of an investigation after engaging in a car chase; Sean wins an essay contest.

Danny resorts to asking his incarcerated archenemy for help locating a dangerous criminal who escaped from prison; Lugo refuses to assist unless he's allowed to accompany them on the pursuit; Frank tries to convince Jamie to take the sergeant's test.

Frank locks horns with a data-tracking company when it refuses to unlock a terrorist's phone that may hold information regarding upcoming targets; Erin obtains information about an impending murder from a shady source; a woman kidnaps a baby.

When a series of drive-by murders occurs after six wrongly convicted men are released from prison, Danny and Baez wonder if the murders were orchestrated by the men as an act of revenge; Frank combats feelings of guilt.

Danny takes a case involving a drug cartel member who he believes torched his house; Erin is given a promotion but finds herself in a challenging situation when both Danny and Jamie ask her for help with their investigations.

Gormley tries to locate a former NYPD detective he believes may be a threat to Frank's safety; Erin navigates office politics when she chooses to reopen a closed case; Jamie is transferred to a new precinct with a lot of problems.

Danny investigates a case involving a woman who shot her husband while she was drunk; Anthony defies Erin's orders to drop an assault case; Frank holds an emergency drill for his inner circle.

When New York City experiences a major blackout, police officers scramble to contain the resulting chaos; Frank uncovers some unpleasant truths about his department; Jamie and Eddie question the line between work and their relationship.

Danny and Baez investigate a murder attempt against a celebrated fertility doctor with a seemingly pristine reputation; Eddie must intervene in a Reagan family matter involving Danny's boys; Erin helps Anthony find justice after a date goes wrong.

Jamie clashes with Eddie and her new partner when they fail to intervene in a dispute at a convenience store; Danny and Baez investigate the death of a college freshman at a fraternity party; a sergeant accuses the department of reverse racism.

Things get personal for Danny when the drug cartel hit man responsible for torching his house resurfaces; an attack on an officer in the line of duty directly impacts a member of Frank's team; Eddie reluctantly introduces Jamie to her mother.

Erin and Frank clash over new legislation from the district attorney's office that undermines Frank's policies; Erin is at odds with Governor Mendez over questionable sex-trafficking laws; Danny risks his badge to protect a friend from losing his.

When a video surfaces of cops being harassed by a group of people at a housing complex, Frank orders a raid to round up anyone with an outstanding warrant, against Garrett's advice.

A video surfaces of officers partaking in a clear case of entrapment; Frank searches for the leaker; Eddie retaliates against a co-worker who is pranking Jamie; Danny and Baez investigate the murder of a tabloid writer.

Frank questions whether a run-in with community activists was an accident or a setup; Jamie strives to rely less on Frank's input to make decisions; Erin helps Anthony protect his daughter and ex-wife from a dangerous psychiatric patient.

Frank tries to reinstate an officer he previously fired after questioning the circumstances surrounding her firing; Danny and Baez investigate the murder of a college basketball player linked to sports betting; Jamie and Eddie pick a wedding venue.

A medium claims to know what happened to a woman who was found dead of an apparent suicide; Jamie and Eddie help a woman who bought cheap insulin online that nearly killed her son; Frank goes after a man he thinks is laundering money from a charity.

Danny goes against a direct order during a hostage negotiation; Nicky asks Erin for help when her friend is in jeopardy of losing his scholarship because of a crime he didn't commit; Frank helps a distraught officer who accidentally shot a girl.

While off duty, Danny encounters a gas station robbery in progress and is forced to use his weapon, leaving him shaken and his family and co-workers concerned; Frank learns that a top officer in his department has a dark past.

After a woman is murdered in her apartment, Danny and Baez turn to her daughter for help, but instead she complicates the investigation; someone from Jamie and Eddie's past launches a smear campaign against them.

Frank's longtime friend Lenny reveals that an upcoming exposé will air some of the NYPD's dirty laundry; Erin must decide how to charge a doctor whose experimental treatments led to the death of his terminally ill daughter.