NCIS Season 19 Episode 15 Recap “Thick As Thieves”

Don’t miss Celebrity Myxer’s recap of NCIS Season 19 Episode 15 “Thick As Thieves.” Parker’s delinquent past resurfaces when NCIS is called to Philadelphia to investigate the death of a Navy petty officer. Here’s what you missed!

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Watch NCIS Season 19 Episode 15 “Thick as Thieves”

Previously on NCIS Season 19 Episode 14, as NCIS investigates the cause of death of a reservist Navy SEAL surgeon, they’re forced to bring Vance’s daughter to help with a highly dangerous mission.

Deon Taylor Talks The Pathway serie...
Deon Taylor Talks The Pathway series with Alexus Renee on Celebrity Myxer

Warning… Spoilers below!

On NCIS Season 19 Episode 15, we flashback to Philly 1975. A teenage Parker and his friend Billy Doyle are running from a car dealership they have just robbed. They get caught by police with rims in their hands.

Juvenile Delinquent

Meanwhile, Knight complains she doesn’t have a date for her cousin’s wedding and gets shot down by Parker, McGee, and Torres. The team gets a call to help out in Philly with a dead body. Petty Officer Danna Calley is shot to death from the back. Torres finds a watch nearby but the victim is wearing hers.

Knight finds a cooler full of organs and they aren’t Calley’s! Palmer says the organs are cow and pig organs and the cooler belonged to Calley.

Hines reports the prints on the watch to belong to a man named Sean Doyle, the nephew of Billy Doyle, Parker’s old friend. Parker tells them he was in juvie with Billy. Torres, Knight, and Mcgee ponder how Parker wound up in juvie when he wanders in. He explains he was 14. When the two got out, Parker changed his life, and Billy took a criminal path.

Old Beef

Billy is retired now but it looks like Sean is following in his path. The team thinks Sean’s murder was a drug deal gone wrong. Parker drops in on Billy at his deli. Billy tells him he hasn’t seen Sean in weeks.

Calley’s supervisor tells the team that she didn’t have a drug addiction and she goes to the park to feed and record opossums. Hines finds Calley’s video of the night she was murdered and it shows Billy and someone fighting. They punch Billy and shoot Calley when she screams out.

The team receives a call about Sean’s location. Sean is dead, killed the same way as Calley. Billy shows up and swears revenge.

Agent Knight and Torres get questioned at gunpoint on NCIS Season 19 Episode 15

Agent Knight and Torres get questioned at gunpoint on NCIS Season 19 Episode 15

Palmer finds a handstamp on Sean’s hand for a local nightclub called Dirtbag. Then agents investigate the bar, the bartender pulls a gun on Knight and Torres yet they calm the hasty woman. She says a man was just in there harassing her about Sean. She is Sean’s ex and tells them to look for a woman with a dragon tattoo on her neck. She gives them Sean’s bookbag.

Director Vance questions Parker about Billy. He wonders how big of a problem an angry Billy will become.

Meanwhile, Torres tells Knight to ask Palmer to be her date for the wedding.

Palmer is eating lunch at a local diner when Billy sits down next to him. Palmer is going over Sean’s autopsy report when Billy pulls out an envelope of money and tries to bribe Palmer. Agent Palmer refuses and Billy threatens him.

Later on, Parker shows up at Billy’s again and they start pushing and arguing. Billy says it’s an eye for an eye now. Parker warns Billy, if he pulls a stunt like that again, Parker will come back as a cop.

The Girl With The Dragon Tattoo

Agent McGee and Parker go on a stakeout on NCIS Season 19 Episode 15

Agent McGee and Parker go on a stakeout on NCIS Season 19 Episode 15

Hines finds pages on Sean’s beeper from his backpack. The pages are locations for meet-ups. The beeper goes off with a new location. Parker and McGee go to stake it out.

A man pulls up to the location but runs when he spots McGee and Parker coming at him. Parker hits him with his car. He’s DEA Agent Mark Sisco.

The team is talking to Sisco who explains that Sean was his informant. They were using Sean to go after the girl with the dragon tattoo on her neck, Kat Hanna. They believe Kat knew Sean was an informant and killed him and Calley.

The team looks into Hann’s whereabouts. Parker says they need someone who knows the streets of Philly, so he suggests Billy. The team is unsure about this, however.

Parker goes back to Billy’s and tells him everything the team knows about Sean’s death and about Hanna. They share some beers and swap old stories. Parker says he knows Billy will do the right thing and help find Hanna.

Twists & Turns

Palmer drops off Sean’s toxicology report and Knight asks him to be her date for the wedding. He says yes!

Meanwhile, Parker gets a call from Billy with Hanna’s location. When they apprehend her, McGee and Knight question Hanna. They inform her that they found evidence from a prior bank robbery and the gun used in Sean and Calley’s murder in her house. She claims she was robbing a jewelry store in Baltimore when Sean and Calley were murdered.

Hines explains to Parker that the weapon wasn’t Hanna’s but Billy’s gun! The team figures out that Billy must be the killer and planted the evidence at Hanna’s house. Parker is pissed.

Parker finds Billy at their old safe spot. Billy has his young new clerk bleeding on the floor with a gun pointed at him. Billy explains to Parker who the man is that he is holding at gunpoint. His name is Colin and he robbed the bank, Billy’s deli, and killed Sean for finding out. Colin confesses to the murders.

Billy wants to kill him, but Parker won’t let him because he’d have to arrest him. Parker offers to kill Colin, but Billy won’t let Parker. Billy arrests Colin himself…

Agent Knight is dressed to impress on NCIS Season 19 Episode 15

Agent Knight is dressed to impress on NCIS Season 19 Episode 15


Palmer is so excited about his date with Knight. He is speechless when he sees her and they leave together smiling…

What did you think of NCIS Season 19 Episode 15? Let’s talk about NCIS in the comments below!

Air Date: March 14, 2022

When Is The NCIS Crossover Event?

Your favorite special agents are joining forces, and it’s going to be an episode for the books. Don’t miss the NCIS and NCIS: Hawai’i crossover event Monday, March 28, 2022.


  • Gary Cole as NCIS Special Agent Alden Parker
  • Sean Murray as NCIS Special Agent Timothy McGee
  • Wilmer Valderrama as NCIS Special Agent Nicholas “Nick” Torres
  • Brian Dietzen as Medical Examiner Jimmy Palmer
  • Diona Reasonover as Forensic Scientist Kasie Hines
  • Katrina Law as NCIS Special Agent Jessica Knight
  • Rocky Carroll as NCIS Director Leon Vance
  • David McCallum as Dr. Donald “Ducky” Mallard
  • Mark Harmon as NCIS Special Agent Leroy Jethro Gibbs

Guest Starring

  • Kevin Chapman as Billy Doyle
  • Ashley Platz as Kat Hanna
  • Jose Pablo Cantillo as DEA Agent Mark Sisco A.K.A Shady Man
  • Braxton Hale as Colin
  • Trisha LaFache as Lola
  • Ruben Grundy as Philadelphia P.D. Detective Dubrow
  • Deb Heitt as Navy Chief Laura Ramirez
  • Tony Becker as Policeman
  • Ansel Carpenter as Billy A.K.A. Boy #1
  • Harrison Leahy as Al A.K.A Boy #2
  • Jeff Pride as Car Owner
  • Val Garrahan as Navy Petty Officer Second Class Danna Calley

Catch a new episode each week on CBS, check out listings dates below. Stay right here, stay mixed in because NCIS Season 19 Episode 16, a gruesome mishap occurs at a Navy petty officer’s gender-reveal party. Drop your email to get insights into your inbox…

Will There Be A Season 20 Of NCIS?

Yes! NCIS Season 20 has officially been renewed. Find out the release date...

Has NCIS Been Cancelled For 2022?

Absolutely not! The Naval crime investigator show that started them all has not been canceled!

NCIS Season 19 Episode Guide

Season Episode Title Air Date
19 21 Birds of a Feather” NCIS Season 19 Season Finale May 23, 2022
19 20 All or Nothing May 16, 2022
19 19 The Brat Pack May 2, 2022
19 18 Last Dance April 18, 2022
19 17 Starting Over” NCIS/NCIS Hawai'i Crossover Episode March 28, 2022
19 16 The Wake March 21, 2022
19 15 Thick As Thieves March 14, 2022
19 14 First Steps March 7, 2022
19 13 The Helpers February 28, 2022
19 12 Fight or Flight January 24, 2022
19 11 All Hands January 17, 2022
19 10 Pledge of Allegiance January 3, 2022
19 9 Collective Memory December 6, 2021
19 8 Peacekeeper November 29, 2021
19 7 “Docked” November 8, 2021
19 6 False Start November 1, 2021
19 5 Face the Strange October 18, 2021
19 4 Great Wide Open October 11, 2021
19 3 Road to Nowhere October 4, 2021
19 2 Nearly Departed September 27, 2021
19 1 “Blood in the Water” NCIS Season 19 Premiere September 20, 2021

Photo Credit: CBS

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