Jamie becomes a New York police officer, like four other men in his family. Danny, his brother, solves the kidnapping of a diabetic nine-year-old. The FBI wants Jamie to spy on the Blue Templar, a police secret society.
The Reagans weigh the rights and wrongs of vigilantism when a good Samaritan who has a police record takes action against a terrorizing subway criminal.
A radical, Islamicized American wife is distraught that her divorce has given custody of their son to the father. She hooks a bomb to her car so that the entire family dies. Danny investigates Arabic emails and defuses the situation.
A teenager's party leads to 4 deaths and 1 illness when some of them snort some special powder. Danny takes a sniffer dog to the students' school lockers to solve the case. A teacher's entanglement with a boy student is revealed.
Off-duty Jamie stumbles on a fracas in Chinatown. He chases one of the men, who dies in a car collision. Internal Affairs investigates Jamie and Danny inside Chinatown, finally nailing an illegal adoption racket for Chinese babies.
When a doorman at a New York City hot spot is murdered, Danny returns to investigate the nightclub scene he left behind years ago. Meanwhile, Frank makes a decision about an ex-partner's future.
Danny unravels a judge's complicity when he favors a sex trafficker and FBI informant against the mob. Frank gets closure for a case from his policing days of a boy who had disappeared. The boy's remains and a confession achieve that.
When the son of a Russian gangster is killed at his own engagement party, Danny delves into the world of the Russian mob and the family politics that exist. Meanwhile, Erin is thrown into a high-profile corruption case.
An undercover cop, who had infiltrated a terrorist cell, is shot. A girl, with acute anxiety and living alone, frequently complains that her house furniture has been disturbed. Danny solves the shooting and Jamie apprehends the intruder.
When a young girl is tied up, gagged and held for ransom, Danny and Jackie place her drug-addicted boyfriend at the top of their suspect list. Meanwhile, Erin and her boss, Charles Rossellini, take their flirtatious banter a step further.
When an assassination attempt is made on Frank's life, Danny goes on a hunt to track down the shooter and find out if the attack was random or by someone with a vendetta against the Commissioner.
Nicky, Erin's daughter, writes a school paper on policing, and is upset when she sees a real dead body. Danny solves that murder. Jamie apprehends an art student who sprays art work on walls and shop shutters. He is let go with a warning.
A much decorated, awkward and homeless Marine gets beaten to death by 3 cavalier, rich guys in a back alley. Danny, an ex-Marine, is distraught by the outrageous act. After a difficult investigation, he succeeds in solving the case.
Danny chances upon a fatal shooting outside a store. His investigation reveals that the shooter is a Peruvian mob boss. The police arrest this killer but Danny's wife is kidnapped, to pressure him not to testify. His wife is then rescued.
When Linda's runway model niece and another model collapse at a fashion show, Danny and Jackie immerse themselves in the cut-throat world of fashion to find the culprit who poisoned them.
When a tourist from Iowa who is visiting the city with his wife gets mugged and shot, the press soon puts the pressure on the police to solve the case fearing for New York's reputation with tourists.
An elderly couple known to the Reagans is murdered in their house in the neighborhood, Jamie's service weapon gets stolen from his locker and Frank fights the mayor about the police budget.
Jamie shares his suspicions with his family about Joe's killing and the now infamous Blue Templar. A private investigation leads them to the police officers who are the ring leaders of this secret group. Joe's death gets a fitting closure.
