|Episode Online Video|
S01, E06 (First Aired:
Three teenagers die from drug overdose, and Danny sets out to find their narcotic source and bring the responsible to justice.
S01, E08 (First Aired:
After witnessing a crime in progress, Jamie pursues a suspect; Danny has to help Jamie avoid an internal affairs investigation.
S01, E09 (First Aired:
Erin becomes the subject of a personal and deadly vendetta when a reviled rapist and murderer she put away is released from jail.
S01, E10 (First Aired:
Danny investigates when a doorman at a nightclub is murdered; Frank makes a decision about a former partner's future.
S01, E11 (First Aired:
Danny and Jackie investigate the murder of a high-end escort after her body is found floating in the East River.
S01, E13 (First Aired:
Danny investigates the shooting of an undercover counterterrorism agent who was involved with infiltrating a sleeper cell.
S01, E12 (First Aired:
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.
S01, E14 (First Aired:
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.
S01, E15 (First Aired:
Frank is lucky to survive a stranger's assassination attempt, an act that prompts a citywide manhunt.
S01, E16 (First Aired:
A young girl is murdered at a debutante ball; Danny gets into an fight with his sister for bringing Nikki to a crime scene.
S01, E17 (First Aired:
Danny vows to find the killer of a war hero who was homeless; false information about Frank leaks to the press.
S01, E18 (First Aired:
After Danny witnesses a murder, a member of his family is put in jeopardy in an attempt to stop him from testifying.
S01, E19 (First Aired:
Jackie and Danny investigate when a reporter and Linda's niece, a runway model, both collapse at a fashion show.
S04, E06 (First Aired:
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).
S04, E07 (First Aired:
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.
S04, E08 (First Aired:
Frank is put in danger when his dinner companion, mob lawyer Angelo Gallo, is shot; Danny is a juror in a murder trial.
S04, E09 (First Aired:
Baez's estranged brother is the primary suspect in a homicide; a woman may have had a hand in her husband's death.
S04, E10 (First Aired:
Danny and Baez meet with resistance while investigating a bombing; Frank deals with political fallout after a man punches an aggressive officer.
S02, E11 (First Aired:
Jackie and Danny investigate a murder at a diner, where a witness claims a uniformed officer fled after shots were fired.
S04, E11 (First Aired:
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.
S04, E12 (First Aired:
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.
S04, E13 (First Aired:
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.
S03, E02 (First Aired:
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.
S03, E03 (First Aired:
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.
S03, E04 (First Aired:
A bride is murdered on her wedding day in a gang shooting; when Vinny performs an unjustified stop, Jamie questions his partner's methods.
S03, E05 (First Aired:
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.
S03, E06 (First Aired:
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.
S03, E07 (First Aired:
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.
S04, E14 (First Aired:
A popular drag queen and reality-TV star is found dead in a park; the mother of an accused man abducts Erin.
S03, E08 (First Aired:
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.
S04, E15 (First Aired:
A kidnapping investigation brings back bad memories for Danny, who worked a similar case years ago; Frank and Inspector General Peterson butt heads.
S03, E09 (First Aired:
Linda helps with a shooting investigation when she hears the victim reveal who was responsible; Jamie is enraged when Henry is mugged.
S04, E16 (First Aired:
A woman threatening to kill herself and the man who murdered her parents calls Danny; Frank goes on Sean's class field trip.
S03, E10 (First Aired:
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.
S05, E14 (First Aired:
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.
S05, E16 (First Aired:
When Baez serves a distraught man with a restraining order, he holds her at gunpoint in an interrogation room; Garrett asks Frank for help.
S05, E18 (First Aired:
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.
S05, E20 (First Aired:
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.
S05, E21 (First Aired:
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.
S04, E17 (First Aired:
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.
S04, E18 (First Aired:
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.
S04, E19 (First Aired:
A college professor involved with a questionable scholarship program is murdered; Danny is investigated for ethical and procedural violations.
S04, E20 (First Aired:
Erin investigates a case involving a police officer accused of killing a suspect in custody; Jamie encourages Eddie to forgive her father.
S04, E21 (First Aired:
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.
S04, E22 (First Aired:
Danny uncovers shocking information while investigating a case against orders.
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.
S01, E20 (First Aired:
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.
S01, E21 (First Aired:
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.
S01, E22 (First Aired:
In an effort to expose the Blue Templar, Frank decides not to report a drug bust case that reveals dirty cops.
S02, E01 (First Aired:
Frank is put on the spot when one of the mayor-elect's supporters is found dead; Jamie goes under cover at a bar.
S02, E03 (First Aired:
Danny makes a discovery about an attempted bank robber's past; Jamie starts working with a new partner (Monica Raymund).
S02, E02 (First Aired:
Danny must face an internal affairs investigation after shooting a cop who failed to identify himself.
S02, E04 (First Aired:
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.
S02, E05 (First Aired:
Danny tries to investigate a case while having a romantic weekend with Linda; Jamie goes under cover to infiltrate a crime family.
S02, E06 (First Aired:
Jamie and Renzulli are injured by a church's security team while responding to a 911 call, and Frank must deal with the fallout.
S02, E07 (First Aired:
Jackie goes under cover as a prostitute to catch a serial killer; Erin meets a man at an art gallery.
S02, E10 (First Aired:
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.
S02, E08 (First Aired:
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.
S02, E09 (First Aired:
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.
No Episode Title
A multigenerational family of police officers dedicated to enforcing the law in New York.