Tom Selleck stars as Frank Reagan, the New York City Police Commissioner. Frank's eldest son Danny is a seasoned detective, family man, and Iraqi War vet who on occasion uses dubious tactics to solve cases.

Danny, Erin and Frank work together to seek justice when the main suspect in a rape case is protected by diplomatic immunity.

The Reagans argue the advantages and disadvantages of profiling; Danny, Frank and the rest of the NYPD search for a homemade bomb about to detonate in the city.

When Erin tries to take down a gang leader using his law-abiding brother as bait, the family debates her methods.

The life of a Reagan is put in danger when three dangerous criminals are released from prison.

A high-end escort's body is found in the river; Frank vows to get justice in a 25-year-old case.

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.

When a former U.S. Marine and war hero-turned-homeless man is found murdered, Danny, a former Marine himself, feels a personal connection and is determined to find the killer. Meanwhile, erroneous information about Frank running for mayor is leaked to the press.

Neighbors of the Reagans are murdered and their son becomes the prime suspect. Jamie is convinced he's being pursued by the Blue Templar when his gun goes missing.