Tom Selleck stars as Frank Reagan, the New York Police Commissioner and patriarch of the Reagan clan, a multigenerational family of cops. Frank's oldest son is Danny, a seasoned detective and Iraqi War veteran who occasionally uses dubious tactics to solve cases. Daughter Erin, the lone female, is an assistant district attorney. Fresh out of Harvard Law, Jamie is the youngest member and "golden boy" of the family. Jamie gave up a lucrative future in law to continue the family's tradition in police work, and is asked to participate in a secretive investigation that even his father does not know about.
The Attorney General's Office gets new evidence against Danny for shooting Thomas Wilder in self-defense, while the wife of a slain police officer asks Frank to talk her son out of joining the force.
An elderly woman is shot in her home while minding her own business. The commissioner has to discipline a disrespectful cop for smoking a cigarette while on the beat.
A woman who is brutally raped by a rich friend is reluctant to press charges. A prominent donor to the NYPD asks Frank for a favor he's reluctant to give. Jamie works for a television production ab...
After Lieutenant Gormley is beaten by a mob, Danny and Frank team up with Detective Abetemarco, who has a personal connection to the neighborhood where the attack happened.
Erin and Anthony try to prevent the deportation of a prominent community activist, and Frank must decide if the NYPD will participate in the U.S. Marshals' high-profile raid of a local gang.
As Frank contends with a whistleblower within the NYPD who claims to have evidence of abuse of power in the organization, Danny and Baez investigate the case of a woman struck by a car.
When a key witness in Danny's case is killed just before testifying, Erin angers Danny by enlisting Anthony to help him find the killer.
After Emily Harrison tells Danny and Baez she's concerned her abusive ex-boyfriend will repeat his behavior with his new girlfriend, Emily becomes the prime suspect when he's murdered.
Frank has very little information when a conflicted priest who could help find a missing boy refuses to break the seal of confession. Danny and Baez investigate the death of a New York socialite.
When the son of Frank's most outspoken critic is murdered, Frank and the boy's father must put aside their differences to seek justice.
When Eddie and Jamie become overly involved in a complicated adoption case between the birth and adoptive parents, they ask Erin to help them settle the dispute without going to court.
Danny Regan is moonlighting as a private security for an ex convict who wants to see his son. Jamie and Eddie have to break up an arguement on the street between two partners.
When diplomatic immunity complicates a child abuse case for Danny and Baez, Frank intervenes, despite not having jurisdiction on the case.
Danny and Baez investigate the murder of a gang leader where the accused shooter is an ex-con romantically linked to his parole officer.
Danny and Baez investigate the murder of a man who killed a mother and son years ago while driving drunk; Anthony is torn when Erin asks him to wear a wire to incriminate a friend.
Linda's brother gets in trouble with the mob and asks Danny to keep him safe.
Jamie and Eddie suspect foul play when the husband of a dying woman doesn't respond to her 911 call.
An ex-NYPD officer goes missing after telling Danny of her plans to make amends to the woman she and her partner wrongfully convicted.
Erin's ex-husband represents the person she's trying to convict of murder.
Erin helps a former witness shut down a drug operation in his apartment building.
Danny and Baez team up with two Russian operatives to search for a dangerous Russian man who entered the U.S. on a diplomatic visa.
A Mexican drug cartel targets Danny when he intercepts a shipment of several million dollars; Jaime goes after a serial killer who preys on the elderly; Mayor Poole confides in Frank that he plans ...