FBI

FBI Season 4 Episodes

Find out how to watch Season 4 of FBI tonight at the American TV Listings Guide

Season 4 Episode Guide

Episode 1 - All That Glitters

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.

  

Episode 2 - Hacktivist

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.

  

Episode 3 - Trauma

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 (Cleveland Berto), for intel since he spends time at the club.

  

Episode 4 - Know Thyself

The team hunts for a serial killer who is targeting young, homeless men.

  

Episode 5 - Charlotte's Web

After a suburban woman is kidnapped from her home, the team looks into trysts on both sides of a seemingly perfect marriage.

  

Episode 6 - Allegiance

The team must track down a shooter targeting detectives from the same precinct and unit, while facing mounting tension from the NYPD.

  

Episode 7 - Gone Baby Gone

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.

  

Episode 8 - Fire and Rain

The team attempts to extract key information from a vulnerable 9/11 widow, Hannah Thompson (Janel Moloney), who is shocked that her new "boyfriend" is the manipulative leader of a terrorist group planning an attack.

  

Episode 9 - Unfinished Business

After Rina is critically wounded while heading to work with Jubal, the team makes the chilling discovery that a vengeful Vargas (David Zayas) orchestrated the shooting from behind bars.

  

Episode 10 - Fostered

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.

  

Episode 11 - Grief

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.

  

Episode 12 - Under Pressure

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.

  

Episode 13 - Pride and Prejudice

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.

  

Episode 14 - Ambition

The team rushes to investigate an extremist gun group after an anti-gun lobbyist building is bombed, with the promise of others to follow.

  

Episode 15 - Scar Tissue

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.

  

Episode 16 - Protective Details

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.

  

Episode 17 - One Night Stand

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.

  

Episode 18 - Fear Nothing

OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists, on the CBS Original series FBI.

  

Episode 19 - Face Off

When a morning show host is murdered inside her home, the team tracks the killer, who they realize is targeting powerful women.

  

Episode 20 - Ghost from the Past

The murder of a TSA agent leads the team to hunt down a killer who is using drug mules to exploit airport security checkpoints.

  

Episode 21 - Kayla

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.

  



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