‘Blue Bloods’ Season 13 Episode 21 Photos, Cast, and Finale Plot Details

Blue Bloods Season 13 Episode 21
Jennifer Esposito as Jackie Curatola and Donnie Wahlberg as Danny Reagan in ‘Blue Bloods’ season 13 episode 21 (Photo © 2023 CBS Broadcasting, Inc)

CBS’s popular, long-running Blue Bloods finishes up season 13 with episode 21, guest starring Jennifer Esposito, Stacy Keach, Dylan Walsh, Sami Gayle, Peter Hermann, and Tony Terraciano. Directed by Alex Zakrzewski from a script by Siobhan Byrne O’Connor and Kevin Wade, episode 21 – “Forgive Us Our Trespasses” – will air on Friday, May 19, 2023 at 10pm ET/PT.

In March 2013, it was announced that CBS had renewed the primetime drama for season 14. The renewal was made possible after the stars and key producers agreed to a pay cut.

The cast is led by Tom Selleck as Frank Reagan, Donnie Wahlberg as Danny Reagan, and Bridget Moynahan as Erin Reagan. Will Estes stars as Jamie Reagan, Len Cariou is Henry Reagan, Sami Gayle is Nicky Reagan-Boyle, Marisa Ramirez plays Det. Maria Baez, and Vanessa Ray is Officer Eddie Janko.

“Forgive Us Our Trespasses” Plot: Danny and Baez team up with Danny’s old partner, Jackie Curatola (Jennifer Esposito), to find a copycat killer emulating murders from a previous case. Also, Frank and Mayor Chase (Dylan Walsh) battle over how best to handle the city’s rising homeless population. And Jamie, Eddie, and Erin team up to build evidence against a previously released man who they believe is again committing criminal assault.

Blue Bloods Season 13 Episode 21
Tom Selleck as Frank Reagan in the season 13 finale (Photo © 2023 CBS Broadcasting, Inc.)

Blue Bloods Plot:

Blue Bloods is a drama about a multi-generational family of cops dedicated to New York City law enforcement. Frank Reagan is the New York Police Commissioner, and heads both the police force and the Reagan brood. He runs his department as diplomatically as he runs his family, 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 Iraq War vet who on occasion uses dubious tactics to solve cases with his partner and new mother, Detective Maria Baez. Erin, the middle daughter, is a New York assistant D.A. who serves as the legal compass for her siblings and father, while also pursuing a run for district attorney. Jamie is the youngest Reagan, a Harvard Law graduate and the family’s golden boy.

Unable to deny the family tradition, Jamie decided to give up a lucrative future in law and follow in the family footsteps as a cop. He’s found a friend and ally in his wife, Eddie, who keeps him on his toes, and has very different reasons than the Reagans for joining the police force.

Blue Bloods Season 13 Episode 21
Tony Terraciano as Jack Reagan, Will Estes as Jamie Reagan, Vanessa Ray as Officer Eddie Janko, Bridget Moynahan as Erin Reagan, Tom Selleck as Frank Reagan, Sami Gayle as Nicky Reagan-Boyle, Donnie Wahlberg as Danny Reagan, and Andrew Terraciano as Sean Reagan in the season 13 finale (Photo © 2023 CBS Broadcasting, Inc)
Blue Bloods Season 13 Episode 21
Will Estes as Jamie Reagan, Vanessa Ray as Officer Eddie Janko, Steven Schirripa as Anthony Abetemarco, and Peter Hermann as Jack Boyle in the “Forgive Us Our Trespasses” episode (Photo © 2023 CBS Broadcasting, Inc)
Blue Bloods Season 13 Episode 21
Jennifer Esposito as Jackie Curatola and Marisa Ramirez as Det. Maria Baez in the season 13 finale (Photo © 2023 CBS Broadcasting, Inc)
Blue Bloods Season 13 Episode 21
Donnie Wahlberg as Danny Reagan and Mather Zickel as Dr. Leonard Walker in season 13 episode 21 (Photo © 2023 CBS Broadcasting, Inc)
Blue Bloods Season 13 Episode 21
Tom Selleck as Frank Reagan, Sami Gayle as Nicky Reagan-Boyle, Donnie Wahlberg as Danny Reagan, Andrew Terraciano as Sean Reagan, and Len Cariou as Henry Reagan in the season 13 finale (Photo © 2023 CBS Broadcasting, Inc)
Blue Bloods Season 13 Episode 21
Tony Terraciano as Jack Reagan, Will Estes as Jamie Reagan, and Vanessa Ray as Officer Eddie Janko in the season 13 finale (Photo: John Paul Filo © 2023 CBS Broadcasting, Inc)