The top 15 chefs are drafted into their three teams; the contestants must prepare an all-American smash burger that proves their cooking abilities.

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.

A man makes a deal with a mischievous elf who casts a magic spell that brings the 12 Days of Christmas to life.

Nicki Chapman is on the hunt for a Pembrokeshire property with a holiday let.

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.

The team is called to investigate a train robbery; Officer Chen has doubts about being Sgt. Bradford's aid; Officer Harper takes matters into her own hands and makes a life-changing decision about her personal life.

Out of thousands of applicants, 50 chefs are chosen to present dishes for the judges.

Fish baps, mushy peas and tartar sauce; mushroom farfalle with blue cheese; hazelnut and apple salad.

Jamie cooks lamb lollipops with curry sauce, rice and peas, and prawn linguine with Sicilian shaved fennel salad.

Mary makes clean-up a breeze by whipping up four one-pot recipes.

Spencer makes all the fixings for a fast fried chicken dinner.

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.

Out of thousands of applicants, 50 chefs are chosen to present dishes for the judges.

Mary's holiday leftover pie; quick and fancy cocktails; holiday DIYs; Chrismukkah décor ideas; "Slaycation" stars drop by with A Very Mary Giveaway.

Fish baps, mushy peas and tartar sauce; mushroom farfalle with blue cheese; hazelnut and apple salad.

Jamie cooks lamb lollipops with curry sauce, rice and peas, and prawn linguine with Sicilian shaved fennel salad.

Movie to be announced.

The 14 remaining chefs are tasked with preparing a curry dish that promises to pack a punch with only 30 minutes on the clock; the winning dish gives the entire team immunity and claims the top-level kitchen for the next challenge.

Out of thousands of applicants, 50 chefs are chosen to present dishes for the judges.

Racers jet off to Bathurst, N.B., where they must put their footwork to the test; some teams realize they might not be doing as well as they thought.

Facing her first Christmas without her mother, a woman develops a budding romance with a handsome man who has holiday secrets.

Years after their personal and professional breakup, the singing duo of Georgia and Joe Winter agree to reunite after their daughter asks them to participate in a Christmas concert, only to find themselves getting back in tune on stage and off.

The 14 remaining chefs are tasked with preparing a curry dish that promises to pack a punch with only 30 minutes on the clock; the winning dish gives the entire team immunity and claims the top-level kitchen for the next challenge.

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.

Years after their personal and professional breakup, the singing duo of Georgia and Joe Winter agree to reunite after their daughter asks them to participate in a Christmas concert, only to find themselves getting back in tune on stage and off.

Denise Nurse helps a couple so fed up with the eight-hour round trip to see their son in Northumbria that they've decided to move there instead; Denise has the keys to some lovely properties and also pays a visit to Northumberland National Park.

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 the LA division of the FBI enlist the help of FBI trainee Simone Clark when one of her former students is suspected of terrorism following an explosion at a local power station.

The cooks face their first challenge of preparing a chicken dish with just one pan and one burner.

On the menu this time is chicken dim sum, coconut buns, cucumber pickle and hoi sin sauce; crackin' crab briks, couscous salad and salsa.

Jamie cooks crispy duck and hoi sin lettuce parcels, chicken cacciatore, and spaghetti and smoky tomato sauce.

Mary gives a quick crash course in French cuisine.

Spencer prepares a family-style roast beef dinner.

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.

The cooks face their first challenge of preparing a chicken dish with just one pan and one burner.

Mary's flourless chocolate cake with mulled wine fruit; last-minute hostess gifts; NYE fashion; Andrea Bain stops by with A Very Mary Giveaway.

On the menu this time is chicken dim sum, coconut buns, cucumber pickle and hoi sin sauce; crackin' crab briks, couscous salad and salsa.

Jamie cooks crispy duck and hoi sin lettuce parcels, chicken cacciatore, and spaghetti and smoky tomato sauce.

Facing her first Christmas without her mother, a woman develops a budding romance with a handsome man who has holiday secrets.

The 13 remaining chefs channel their vacation vibes when they're tasked with preparing a seafood dish inspired by tropical island cuisine; the winning dish gives the entire team immunity and claims the top-level kitchen for the next challenge.

The cooks face their first challenge of preparing a chicken dish with just one pan and one burner.

The remaining teams head to Tobermory, Ont. and the Bruce Peninsula, where they compete for a spot in the finale.

A woman's budding romance with a charismatic CEO challenges her thoughts on love and family.

The team, alongside the LA division of the FBI, is in a race to stop bombs that have been scattered throughout the city by a suspected terrorist; the joint task force is suspicious of the CIA's involvement in the situation.

Jamie Oliver offers a stress-free guide to festive feasting with luxurious smoked salmon pâté, pork stuffing with silky leeks, sweet peaches and roasted chestnuts, and goose-fat roast potatoes that are fluffy on the inside and crisp on the outside.

The 13 remaining chefs channel their vacation vibes when they're tasked with preparing a seafood dish inspired by tropical island cuisine; the winning dish gives the entire team immunity and claims the top-level kitchen for the next challenge.

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.

The team, alongside the LA division of the FBI, is in a race to stop bombs that have been scattered throughout the city by a suspected terrorist; the joint task force is suspicious of the CIA's involvement in the situation.

Jamie Oliver offers a stress-free guide to festive feasting with luxurious smoked salmon pâté, pork stuffing with silky leeks, sweet peaches and roasted chestnuts, and goose-fat roast potatoes that are fluffy on the inside and crisp on the outside.

Having spent 25 years in Holland, a retired opera singer and a music teacher approaching retirement have decided that now is the right time to return to the UK and, with Alistair Appleton's help, find a new home in Somerset or Gloucestershire.

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.

The team, alongside the LA division of the FBI, is in a race to stop bombs that have been scattered throughout the city by a suspected terrorist; the joint task force is suspicious of the CIA's involvement in the situation.

The first Mystery Box Challenge gives the winner an advantage in the Elimination Challenge.

Moroccan bream; couscous salad; pomegranate and harissa; British burgers; shred salad; pickles and things.

Jamie makes jerk pork, grilled corn and crunchy tortilla salad, minestrone, poached chicken and salsa verde.

Leftovers can seem uninspiring, but Mary gives them new life by showing how to use them as ingredients in brand new recipes.

Tips for making fish and chips.

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.

The first Mystery Box Challenge gives the winner an advantage in the Elimination Challenge.

Mary's Christmas Eve dinner; tea biscuit cinnamon buns; last-minute gift wrap battle; pet gifts; Cirque's Twas The Night Before performs.

Moroccan bream; couscous salad; pomegranate and harissa; British burgers; shred salad; pickles and things.

Jamie makes jerk pork, grilled corn and crunchy tortilla salad, minestrone, poached chicken and salsa verde.

A woman's budding romance with a charismatic CEO challenges her thoughts on love and family.

The chefs are tasked with preparing a next-level international street food dish; the platform never stops moving throughout the challenge.

The first Mystery Box Challenge gives the winner an advantage in the Elimination Challenge.

The competition turns mission impossible, and the racers take a trip down memory lane as the final teams are pushed to the limit to earn the coveted title of "The Amazing Race Canada" champions.

A workaholic lawyer destined to spend Christmas alone is transported back to 1999 after an unexpected run in with a particularly wise ride-share driver.

Sgt. Grey supports Officer Nolan's desire to become a training officer and offers to ride with him for the day to get him ready; Tim and Lucy decide on their plans for Mother's Day and a romantic vacation.

Jamie prepares dishes with just five ingredients for a Christmas feast.

The chefs are tasked with preparing a next-level international street food dish; the platform never stops moving throughout the challenge.

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.

Sgt. Grey supports Officer Nolan's desire to become a training officer and offers to ride with him for the day to get him ready; Tim and Lucy decide on their plans for Mother's Day and a romantic vacation.

Jamie prepares dishes with just five ingredients for a Christmas feast.

Briony May Williams helps to make dreams come true for a buyer with an ambition of moving to the North Yorkshire countryside on a £250,000 budget; she takes her escapee to a farm, where they are given the privilege of feeding a young lamb.

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.

Sgt. Grey supports Officer Nolan's desire to become a training officer and offers to ride with him for the day to get him ready; Tim and Lucy decide on their plans for Mother's Day and a romantic vacation.

A workaholic lawyer destined to spend Christmas alone is transported back to 1999 after an unexpected run in with a particularly wise ride-share driver.

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.

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.

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.

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.

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.

Danny and Jackie discover that a woman who recanted an abuse claim is in a relationship with a powerful councilman; Linda returns to work, causing upheaval for Danny.

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.

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.

Danny serves as lead hostage negotiator when Erin is held at gunpoint inside the courtroom; when Jamie is suspended for disobeying orders, Frank must determine a proper punishment.

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 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.

Danny serves as lead hostage negotiator when Erin is held at gunpoint inside the courtroom; when Jamie is suspended for disobeying orders, Frank must determine a proper punishment.

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 (Karen Allen) 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.

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.

Jamie becomes a target after intervening in an abusive relationship between a thug and his girlfriend; an illegal recording of Henry making insensitive comments is leaked to the press.

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 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.

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 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.

When a newspaper reporter (Zachary Booth) is targeted while wearing NYPD gear during a ride-along, Frank thinks the shooter is targeting cops.

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.