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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!

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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 1 - All That Glitters (I)
    8.0/10(606 votes)

    #1 - All That Glitters (I)

    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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  2. FBI Season 4 Episode 2 - Hacktivist
    7.7/10(494 votes)

    #2 - Hacktivist

    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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  3. FBI Season 4 Episode 3 - Trauma
    7.6/10(463 votes)

    #3 - Trauma

    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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  4. FBI Season 4 Episode 4 - Know Thyself
    7.6/10(444 votes)

    #4 - Know Thyself

    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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  5. FBI Season 4 Episode 5 - Charlotte’s Web
    7.8/10(443 votes)

    #5 - Charlotte’s Web

    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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  6. FBI Season 4 Episode 6 - Allegiance
    7.7/10(445 votes)

    #6 - Allegiance

    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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  7. FBI Season 4 Episode 7 - Gone Baby Gone
    7.7/10(440 votes)

    #7 - Gone Baby Gone

    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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  8. FBI Season 4 Episode 8 - Fire and Rain
    7.8/10(476 votes)

    #8 - Fire and Rain

    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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  9. FBI Season 4 Episode 9 - Unfinished Business
    8.3/10(520 votes)

    #9 - Unfinished Business

    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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  10. FBI Season 4 Episode 10 - Fostered
    7.4/10(442 votes)

    #10 - Fostered

    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:York Walker, Joe Webb

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  11. FBI Season 4 Episode 11 - Grief
    7.7/10(441 votes)

    #11 - Grief

    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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  12. FBI Season 4 Episode 12 - Under Pressure
    7.6/10(421 votes)

    #12 - Under Pressure

    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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  13. FBI Season 4 Episode 13 - Pride and Prejudice
    7.3/10(405 votes)

    #13 - Pride and Prejudice

    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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  14. FBI Season 4 Episode 14 - Ambition
    7.3/10(414 votes)

    #14 - Ambition

    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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  15. FBI Season 4 Episode 15 - Scar Tissue
    7.6/10(405 votes)

    #15 - Scar Tissue

    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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  16. FBI Season 4 Episode 16 - Protective Details
    7.6/10(427 votes)

    #16 - Protective Details

    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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  17. FBI Season 4 Episode 17 - One Night Stand
    7.9/10(413 votes)

    #17 - One Night Stand

    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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  18. FBI Season 4 Episode 18 - Fear Nothing
    8.0/10(461 votes)

    #18 - Fear Nothing

    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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  19. FBI Season 4 Episode 19 - Face Off
    7.6/10(415 votes)

    #19 - Face Off

    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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  20. FBI Season 4 Episode 20 - Ghost from the Past
    8.0/10(398 votes)

    #20 - Ghost from the Past

    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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  21. FBI Season 4 Episode 21 - Kayla
    7.3/10(408 votes)

    #21 - Kayla

    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:Keith Eisner, Joe Webb

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Season 4 Ratings Summary

"All That Glitters (I)" is the best rated episode of "FBI" season 4. It scored 8/10 based on 606 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".