FBI/Season Four

Season Four
FBI
Season Premiere	September 21, 2021
Season Finale	May 17, 2022
Episode Count	21
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Season Four of FBI premiered on September 21, 2021.

Episodes

#	#	Title	Written By	Directed By	Airdate	Viewers	18-49 Rating	Prod.
57	1	All That Glitters (1) part 1 of 3 part crossover with FBI: Most Wanted & FBI: International	Dick Wolf & Rick Eid	Alex Chapple	September 21, 2021	7.124M	0.72%	401
After a young woman is killed on her way home from a lavish yacht party, the team investigates who she was and how she came to be at the event, which was attended by some of the most influential people in the world. Also, Maggie brings Crosby into the investigation after a murder suspect is identified as a veteran who had been on several Army operations with Crosby. Teleplay by Rick Eid
58	2	Hacktivist	Claire Demorest	Jean de Segonzac	September 28, 2021	7.367M	0.68%	402
Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals, while demanding a full investigation into the recently deceased patients of a local psychiatric facility. With Jubal's son waiting for important surgery at one of the impacted hospitals, Jubal's adamant about remaining involved in the case despite Isobel's reservations.
59	3	Trauma	Joe Webb	Alex Chapple	October 5, 2021	6.707M	0.59%	403
After the team finds a connection between bombings at government agencies and a private veterans' club in New York City, Isobel tells OA to recruit his former Army buddy, Chris, for intel since he spends time at the club. However, knowing the difficulty soldiers like Chris often face returning to civilian life, OA is reluctant to follow orders.
60	4	Know Thyself	Jen Frosch	Timothy Busfield	October 12, 2021	6.751M	0.7%	404
The team hunts for a serial killer who is targeting young, homeless men. Also, Tiffany and Scola don't see eye to eye on how to handle the case or the difference between partners and co-workers. Teleplay by Joe Halpin
61	5	Charlotte's Web	Claire Demorest & Heather Michaels	Yangzom Brauen	November 2, 2021	6.992M	0.58%	406
After a suburban woman is kidnapped from her home, the team looks into trysts on both sides of a seemingly perfect marriage. Also, OA feels pressure from Mona to make changes in his career path.
62	6	Allegiance	Keith Eisner	John Polson	November 9, 2021	7.174M	0.72%	405
The team must track down a shooter targeting detectives from the same precinct and unit, while facing mounting tension from the NYPD. Also, Tiffany finds that her NYPD roots may be influencing her view of the situation.
63	7	Gone Baby Gone	Zach Calig	Eif Rivera	November 16, 2021	7.612M	0.67%	407
After a young girl is kidnapped from her daycare, the team must help her parents navigate a debt owed to the deadly gang in their neighborhood. Also, Maggie struggles to focus on the case when her sister, Erin, returns from rehab.
64	8	Fire and Rain	Rick Eid	Sharat Raju	December 7, 2021	7.024M	0.62%	408
The team attempts to extract key information from a vulnerable 9/11 widow, Hannah Thompson, who is shocked that her new "boyfriend" is the manipulative leader of a terrorist group planning an attack. Also, Scola is reminded of his brother's death on 9/11, and Tiffany worries about his emotional choices during the investigation.
65	9	Unfinished Business	Joe Halpin & J. F. Halpin	Alex Chapple	December 14, 2021	8.309M	0.75%	409
After Rina is critically wounded while heading to work with Jubal, the team makes the chilling discovery that a vengeful Vargas orchestrated the shooting from behind bars and continues to target the rest of their team and their loved ones. Teleplay by Joe Halpin
66	10	Fostered	Joe Webb & York Walker	Stephen Surjik	January 4, 2022	8.519M	0.76%	410
As the team investigates a string of jewelry store robberies that culminate in a double murder, they uncover a connection to a 16-year-old boy trying to survive the foster care system. Also, Tiffany becomes personally invested after learning about the boy's ill-fated upbringing.
67	11	Grief	Keith Eisner	Matthew McLoota	January 11, 2022	8.45M	0.75%	411
As the team searches for an abducted college co-ed, Jubal becomes intent on obtaining lifesaving leads from the father of the abductor's previous victim. Also, Jubal continues to grapple with the aftermath of Rina's condition, leading to a tense encounter with her mother.
68	12	Under Pressure	Claire Demorest	Brenna Malloy	February 1, 2022	7.543M	0.63%	412
Maggie goes undercover working in a bar to investigate an anti-government group that regularly gathers there and has several members suspected in a series of bombings. The case opens old wounds for her when a single father on the periphery of the group begins to fear he's in danger of becoming collateral damage.
69	13	Pride and Prejudice	Joe Halpin	Alex Chapple	February 22, 2022	7.377M	0.61%	413
When a Muslim college student and his younger brother are murdered, the team connects with the outraged imam of OA's former mosque, who insists the victims were wrongly targeted as terrorists. Also, OA must reconsider where his loyalties lie when working the case with a Muslim anti-terrorist agent bent on solving the investigation through any means necessary. Teleplay by Kristy Lowrey
70	14	Ambition	Keith Eisner	Jean de Segonzac	March 8, 2022	7.706M	0.65%	414
The team rushes to investigate an extremist gun group after an anti-gun lobbyist building is bombed, with the promise of others to follow. Also, SAC Bashar dangles a possible promotion for OA, but only if he can persuade Tiffany to not report an incident she viewed as misconduct.
71	15	Scar Tissue	Heather Michaels	Lisa Robinson	March 22, 2022	8.031M	0.66%	415
The team realizes they have a cross-country serial killer on their hands, after another body is found bound with the same sophisticated knot as their local victim. Also, the case has ties to Isobel's father, Robert, and his hotel, leading to revelations about their fractured relationship.
72	16	Protective Details	Joe Webb	Alex Zakrzewski	March 29, 2022	7.575M	0.66%	416
After an ICE agent is fatally shot at an ICE vs. DEA hockey game, the team attempts to find the shooter who they believe may also be targeting Congressman Curtis Grange, who was at the same game.
73	17	One Night Stand	Rick Eid & Joe Halpin	Alex Chapple	April 12, 2022	7.393M	0.63%	417
When a young couple is found murdered in a New York City park after returning from vacation, the team searches for a suspect linked to the drug trade. Also, Scola turns over a new leaf when it comes to his relationships.
74	18	Fear Nothing	Rick Eid & Joe Halpin	Jon Cassar	April 19, 2022	7.511M	0.56%	418
OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.
75	19	Face Off	Claire Demorest & York Walker	Jackeline Tejada	April 26, 2022	7.555M	0.55%	419
When a morning show host is murdered inside her home, the team tracks the killer, who they realize is targeting powerful women. Also, things become awkward for Scola when Special Agent Nina Chase becomes part of the team during Maggie's recovery.
76	20	Ghost from the Past	Rick Eid & Joe Halpin	Heather Cappiello	May 10, 2022	7.162M	0.59%	420
The murder of a TSA agent leads the team to hunt down a killer who is using drug mules to exploit airport security checkpoints. Also, OA struggles to cope with the aftermath of the sarin gas exposure and the 10th anniversary of his army friend's death in Afghanistan.
77	21	Kayla	Keith Eisner & Joe Webb	Alex Zakrzewski	May 17, 2022	7.145M	0.56%	421
When a retired DEA agent is shot outside a bakery, the team works to determine if the victim's past cases or current bouncer job are connected to the murder. Also, Nina and Tiffany clash over the use of an informant while they are paired during the investigation.