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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!

Binge this in 14h 45m•Peaking at 8.3/10

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 city and the country safe.

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Episode Rankings

  1. #1 Fan Favorite
    FBI Season 4 Episode 9 - Unfinished Business
    8.3/10(570 votes)

    S4:E9

    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
    Writers:Joe Halpin, J.F. Halpin

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  2. FBI Season 4 Episode 1 - All That Glitters (I)
    8.0/10(662 votes)

    S4:E1

    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
    Writers:Rick Eid, Dick Wolf

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  3. FBI Season 4 Episode 18 - Fear Nothing
    8.0/10(501 votes)

    S4:E18

    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
    Writers:Rick Eid, Joe Halpin

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  4. FBI Season 4 Episode 20 - Ghost from the Past
    8.0/10(438 votes)

    S4:E20

    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
    Writers:Rick Eid, Joe Halpin

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  5. FBI Season 4 Episode 17 - One Night Stand
    7.9/10(447 votes)

    S4:E17

    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
    Writers:Rick Eid, Joe Halpin

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  6. FBI Season 4 Episode 5 - Charlotte’s Web
    7.8/10(492 votes)

    S4:E5

    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
    Writers:Claire Demorest, Heather Michaels

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  7. FBI Season 4 Episode 8 - Fire and Rain
    7.8/10(519 votes)

    S4:E8

    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

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  8. FBI Season 4 Episode 2 - Hacktivist
    7.7/10(545 votes)

    S4:E2

    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

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  9. FBI Season 4 Episode 6 - Allegiance
    7.7/10(489 votes)

    S4:E6

    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

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  10. FBI Season 4 Episode 3 - Trauma
    7.6/10(509 votes)

    S4:E3

    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

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  11. FBI Season 4 Episode 4 - Know Thyself
    7.6/10(490 votes)

    S4:E4

    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

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  12. FBI Season 4 Episode 7 - Gone Baby Gone
    7.6/10(484 votes)

    S4:E7

    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

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  13. FBI Season 4 Episode 11 - Grief
    7.6/10(484 votes)

    S4:E11

    The team searches for an abducted college coed; Jubal has a tense encounter with Rina's mother.

    Director:Matthew McLoota
    Writer:Keith Eisner

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  14. FBI Season 4 Episode 15 - Scar Tissue
    7.6/10(448 votes)

    S4:E15

    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

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  15. FBI Season 4 Episode 19 - Face Off
    7.6/10(454 votes)

    S4:E19

    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
    Writers:Claire Demorest, York Walker

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  16. FBI Season 4 Episode 12 - Under Pressure
    7.5/10(465 votes)

    S4:E12

    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

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  17. FBI Season 4 Episode 16 - Protective Details
    7.5/10(465 votes)

    S4:E16

    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

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  18. FBI Season 4 Episode 10 - Fostered
    7.4/10(482 votes)

    S4:E10

    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
    Writers:Joe Webb, York Walker

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  19. FBI Season 4 Episode 13 - Pride and Prejudice
    7.3/10(446 votes)

    S4:E13

    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

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  20. FBI Season 4 Episode 14 - Ambition
    7.3/10(453 votes)

    S4:E14

    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

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  21. FBI Season 4 Episode 21 - Kayla
    7.3/10(449 votes)

    S4:E21

    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
    Writers:Joe Webb, Keith Eisner

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Season 4 Ratings Summary

"Unfinished Business" is the best rated episode of "FBI" season 4. It scored 8.3/10 based on 570 votes. Directed by Alex Chapple and written by Joe Halpin, J.F. Halpin, it aired on 12/14/2021. This episode is rated 0.3 points higher than the second-best, "All That Glitters (I)".