ALLTV

Danny uncovers shocking information while investigating a case against orders.

Blue Bloods

Exiles

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.

Above and Beyond

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

Custody Battle

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

Secret Arrangements

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.

Righting Wrongs

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.

Knockout Game

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

Insult to Injury

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

Open Secrets

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

Manhattan Queens

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.

Unfinished Business

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.

The Bogeyman

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.

Ties That Bind

New York Police Commissioner Frank Reagan heads a multigenerational family of police officers dedicated to enforcing the law in New York.

S4 E17 | Knockout Game

E22 | Exiles

E21 | Above and Beyond

E20 | Custody Battle

E19 | Secret Arrangements

E18 | Righting Wrongs

E17 | Knockout Game

E16 | Insult to Injury

E15 | Open Secrets

E14 | Manhattan Queens

E13 | Unfinished Business

E12 | The Bogeyman

E11 | Ties That Bind