8.0/10542 votes#1 - All That Glitters (I)
Season 4 Episode 1 - Aired 9/21/2021
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. The crossover continues on FBI: Most Wanted S03E01 Exposed (II) and FBI: International S01E01 Pilot (III).
Director: Alex Chapple
7.7/10440 votes#2 - Hacktivist
Season 4 Episode 2 - Aired 9/28/2021
Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals. Jubal's son waits for important surgery at one of the impacted hospitals.
Director: Jean de Segonzac
Writer: Claire Demorest
7.6/10410 votes#3 - Trauma
Season 4 Episode 3 - Aired 10/5/2021
The team finds a connection between bombings and a private veterans' club in New York City; Isobel tells a reluctant OA to recruit a former Army buddy for intel.
Director: Alex Chapple
Writer: Joe Webb
7.6/10394 votes#4 - Know Thyself
Season 4 Episode 4 - Aired 10/12/2021
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.
Director: Timothy Busfield
Writer: Jen Frosch
7.8/10392 votes#5 - Charlotte’s Web
Season 4 Episode 5 - Aired 11/2/2021
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.
Director: Yangzom Brauen
Writer: Claire Demorest, Heather Michaels
7.7/10390 votes#6 - Allegiance
Season 4 Episode 6 - Aired 11/9/2021
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.
Director: John Polson
Writer: Keith Eisner
7.7/10388 votes#7 - Gone Baby Gone
Season 4 Episode 7 - Aired 11/16/2021
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; Maggie struggles to focus on the case when her sister returns from rehab.
Director: Eif Rivera
Writer: Zach Calig
7.8/10419 votes#8 - Fire and Rain
Season 4 Episode 8 - Aired 12/7/2021
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.
Director: Sharat Raju
Writer: Rick Eid
8.2/10450 votes#9 - Unfinished Business
Season 4 Episode 9 - Aired 12/14/2021
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.
Director: Alex Chapple
Writer: Joe Halpin, J.F. Halpin
7.4/10391 votes#10 - Fostered
Season 4 Episode 10 - Aired 1/4/2022
As the team investigates a string of jewellery 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. Tiffany becomes personally invested after learning about the boy's ill-fated upbringing.
Director: Stephen Surjik
Writer: Joe Webb, York Walker
7.7/10384 votes#11 - Grief
Season 4 Episode 11 - Aired 1/11/2022
The team searches for an abducted college coed; Jubal has a tense encounter with Rina's mother.
Director: Matthew McLoota
Writer: Keith Eisner
7.6/10370 votes#12 - Under Pressure
Season 4 Episode 12 - Aired 2/1/2022
Maggie goes under cover working in a bar to investigate an anti-government group that regularly gathers there; a single father on the periphery of the group begins to fear he's in danger of becoming collateral damage.
Director: Brenna Malloy
Writer: Claire Demorest
7.2/10360 votes#13 - Pride and Prejudice
Season 4 Episode 13 - Aired 2/22/2022
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.
Director: Alex Chapple
Writer: Joe Halpin
7.3/10365 votes#14 - Ambition
Season 4 Episode 14 - Aired 3/8/2022
The team investigates an extremist gun group after an anti-gun lobbyist building is bombed; SAC Bashar dangles a possible promotion for OA.
Director: Jean de Segonzac
Writer: Keith Eisner
7.6/10356 votes#15 - Scar Tissue
Season 4 Episode 15 - Aired 3/22/2022
The team realizes they have a cross-country serial killer on their hands; the case has ties to Isobel's father, Robert, and his hotel, leading to revelations about their fractured relationship.
Director: Lisa Robinson
Writer: Heather Michaels
7.6/10372 votes#16 - Protective Details
Season 4 Episode 16 - Aired 3/29/2022
After an immigration agent is fatally shot at a 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.
Director: Alex Zakrzewski
Writer: Joe Webb
7.9/10365 votes#17 - One Night Stand
Season 4 Episode 17 - Aired 4/12/2022
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.
Director: Alex Chapple
Writer: Rick Eid, Joe Halpin
8.0/10408 votes#18 - Fear Nothing
Season 4 Episode 18 - Aired 4/19/2022
OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.
Director: Jon Cassar
Writer: Rick Eid, Joe Halpin
7.6/10369 votes#19 - Face Off
Season 4 Episode 19 - Aired 4/26/2022
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.
Director: Jackeline Tejada
Writer: Claire Demorest, York Walker
8.0/10348 votes#20 - Ghost from the Past
Season 4 Episode 20 - Aired 5/10/2022
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.
Director: Heather Cappiello
Writer: Rick Eid, Joe Halpin
7.3/10359 votes#21 - Kayla
Season 4 Episode 21 - Aired 5/17/2022
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.
Director: Alex Zakrzewski
Writer: Joe Webb, Keith Eisner
The Best Episodes of FBI Season 4
Every episode of FBI Season 4 ranked from best to worst. Discover the Best Episodes of FBI Season 4!
The New York office of the FBI brings to bear all their talents, intellect and technical expertise on major cases in order to keep their...
Genres:CrimeAction & AdventureDrama
Network:CBS
Season 4 Ratings Summary
"All That Glitters (I)" is the best rated episode of "FBI" season 4. It scored 8/10 based on 542 votes. Directed by Alex Chapple and written by Rick Eid, Dick Wolf, it aired on 9/21/2021. This episode is rated 0.3 points higher than the second-best, "Hacktivist".