The return of Rachel Witten, Eddie's former partner turned social worker, testes her loyalties and conflicts Frank, when Rachel brings an accusation of excessive force against an officer. Also, Danny and Baez clash with a troubled foster child at the center of their latest investigation and Erin must make a tough decision about her campaign run for district attorney.
s13e01 - Keeping the Faith
s13e02 - First Blush
s13e03 - Ghosted
s13e04 - Life During Wartime
s13e05 - Homefront
s13e06 - On Dangerous Ground
s13e07 - Heroes
s13e08 - Poetic Justice
s13e09 - Nothing Sacred
s13e10 - Fake It Till You Make It
s13e11 - Lost Ones
s13e12 - The Big Leagues
s13e13 - Past History
s13e14 - Collision Course
s13e15 - Close to Home
s13e16 - The Naked Truth
s13e17 - Smoke & Mirrors
s13e18 - Family Matters
s13e19 - Fire Drill
s13e20 - Irish Exits
s13e21 - Forgive Us Our Trespasses
Frank Reagan is the New York Chief of Police and patriarch of the Reagan brood, which he heads as diplomatically as he does the force, even when dealing with the politics that plagued his unapologetically bold father, Henry, during his stint as Chief. A source of pride and concern for Frank is his eldest son Danny, a seasoned detective, family man and Iraqi War vet who on occasion uses dubious tactics to solve cases. The sole Reagan woman in the family, Erin, is a N.Y. Assistant D.A. and newly single parent, who also serves as the legal compass for her siblings and father. Jamie is the youngest Reagan, fresh out of Harvard Law and the family's "golden boy".
However, unable to deny the family tradition, Jamie decided to give up a lucrative future in law and is now a newly minted cop, a career change seemingly supported by his beautiful girlfriend, Sydney Davenport, a first year lawyer. Jamie's life takes an abrupt turn, however, when he's asked to become part of a clandestine police investigation even his father knows nothing about, and one that could impact the family's legacy.