Blue Bloods · Season 4 22 Episodes

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Episodes

NoFirst Air DateNameOverview
4x1Unwritten RulesWhen an armed robbery ends with the death of a police officer, Frank makes it a mission for the NYPD to bring the suspect to justice. However, tensions run high in the Reagan household when Erin drops the charges and releases the suspect due to lack of evidence.
4x2The City That Never SleepsWhen a famous movie star, Russell Berke, who shadowed Danny for research on his next role, is stabbed, Danny goes to his aid, but must keep the crime on the down-low due to Russell's celebrity status.
4x3To Protect and ServeDanny becomes the lead hostage negotiator when a prime informant in a large drug case holds Erin at gunpoint inside the courtroom.
4x4The Truth About LyingA 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).
4x5Lost and FoundWhen Danny and Baez suspect a little girl might be the victim of a kidnapping, the girl’s mother denies it, but her story doesn’t add up. Meanwhile, Frank pays a visit to a priest, a counselor to the NYPD, who was arrested on a DUI charge.
4x6Growing BoysJamie'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).
4x7Drawing DeadWhen an officer is accused of using excessive force on a suspect, Frank finds his department under scrutiny from the community and the mayor. Meanwhile, Danny and Baez investigate the murder of a Wall Street securities trader who was deep in debt due to a gambling addition.
4x8Justice ServedFrank is put in danger when his dinner companion, mob lawyer Angelo Gallo, is shot; Danny is a juror in a murder trial.
4x9Bad BloodDanny and Baez investigate a homicide in which Baez’s estranged brother, a former drug addict, is the lead suspect. Meanwhile, Frank learns one of his most highly decorated officers, a German Shepherd in the K9 unit, is being accused of police brutality, and Henry investigates the widow of a former NYPD pal who might have had a hand in her husband’s death.
4x10Mistaken IdentityDanny and Baez investigate a local bombing, but meet with tension and resistance from the community during the investigation. Meanwhile, Frank must deal with the political fallout when a man punches an officer who was overly aggressive in his questioning.
4x11Ties That BindDanny’s loyalty is tested when he is assigned to the case of a childhood friend, Mickey, who is under investigation for having ties to an infamous mob family. Meanwhile, Frank gets word that crime is on the rise due to a recent judicial ruling about the legality of the “stop and frisk” policy.
4x12The BogeymanDanny is after the distributor of a deadly new street drug.
4x13Unfinished BusinessDanny and Baez search for a Marine veteran who may have PTSD; a woman seeking justice for her murdered daughter catches Frank off-guard during a press conference.
4x14Manhattan QueensA popular drag queen and reality-TV star is found dead in a park; the mother of an accused man abducts Erin.
4x15Open SecretsA kidnapping investigation brings back bad memories for Danny, who worked a similar case years ago; Frank and Inspector General Peterson butt heads.
4x16Insult to InjuryWhen Danny takes a call from a woman who is threatening to kill herself along with the man who killed her parents in a drunk driving accident, he rushes to find her. Meanwhile, Frank accompanies his grandson, Sean, on a class field trip and struggles to get the lead chaperone to loosen the reigns so the kids can have fun.
4x17Knockout GameDanny and Baez search for teenager who have been randomly punching unsuspecting people in the head, including a pregnant woman; Frank worries that promoting an officer will be viewed as favoritism.
4x18Righting WrongsA woman dies after undergoing a secret plastic surgery, so Danny and Baez try to figure out what happened. Elsewhere, Frank asks Jamie to solve a cold case; and Erin explores the world of speed dating.
4x19Secret ArrangementsA college professor involved with a questionable scholarship program is murdered; Danny is investigated for ethical and procedural violations.
4x20Custody BattleErin investigates a case involving a police officer accused of killing a suspect in custody; Jamie encourages Eddie to forgive her father.
4x21Above and BeyondAfter a detective from Danny's precinct is killed while working undercover, Frank goes above and beyond to find the killer only to discover that the victim held a big secret; Jamie and Eddie help Nicky track down a homeless former classmate.
4x22ExilesDanny uncovers shocking information while investigating a case against orders.

Cast

CharacterPerson
Frank ReaganTom Selleck
Danny ReaganDonnie Wahlberg
Erin Reagan-BoyleBridget Moynahan
Jamie ReaganWill Estes
Henry ReaganLen Cariou
Linda ReaganAmy Carlson
Nicky Reagan-BoyleSami Gayle
Maria BaezMarisa Ramirez

Crew

DepartmentJobPerson
ProductionProducerLeonard Goldberg
Mitchell Burgess