The BEST episodes of FBI True season 4

#1 - Hunting GRAYSUIT: America's Deadly Traitor (2)

Season 4 - Episode 6 - Aired 11/21/2023

Eric O'Neill, an FBI investigative specialist with no undercover training, manages to win the trust of suspected spy, Robert Hanssen - or so he thinks.

#2 - Stopping a Sniper

Season 4 - Episode 14 - Aired 1/31/2024

After a family doctor well-known for performing abortions is gunned down in his suburban Buffalo home in 1998, all clues point to an anti-abortion extremist as the sniper. But he's nowhere to be found. Soon, the FBI turns to a rookie agent and a confidential informant in hopes they can ply a convicted clinic bomber and his wife for the intel that will bring this top 10 fugitive to justice. Former Assistant Special Agents in Charge Harold Brantley and Michael Osborn along with former unit chief Cynthia Deitle sit down with fellow agent Kristy Kottis about their work launching this international manhunt.

#3 - Seattle Sex Trafficker: 'You're Gonna Be Rich'

Season 4 - Episode 15 - Aired 2/7/2024

In 2014, a suburban police detective learns of a Seattle filmmaker who convinces teenage girls to engage in prostitution with fraudulent promises that they'll cash in when he makes a movie on the subject. After the suspect goes on the run, the detective and an FBI special agent team up to uncover a multi-state sex-trafficking operation. Special Agent Ingrid Arbuthnot-Stohl and Natalie D'Amico speak with agent Kristy Kottis about how they collaborated to take down a conman who victimized and exploited unsuspecting young women.

#4 - Chasing The Olympic Bomber (1)

Season 4 - Episode 9 - Aired 12/5/2023

A pipe bomb at a concert is the first of a string of explosions during the 1996 Atlanta Olympics; the FBI have a serial bomber on their hands.

#5 - The Birmingham Church Bombing: The Long Arc of Justice (2)

Season 4 - Episode 18 - Aired 2/14/2024

#6 - The Disappearance of Chyenne Kircher (2)

Season 4 - Episode 8 - Aired 11/28/2023

The FBI doggedly wade through their prime suspect's emotional outbursts, half-truths and outright lies to find out what happened to Chyenne Kircher.

#7 - Finding Aldrich Ames: The Hunt for a Mole

Season 4 - Episode 16 - Aired 2/7/2024

When the CIA's most valuable Russian assets start disappearing one by one, the Agency starts hunting for the mole who's been betraying them since 1985. As the mole hunters zero in on a trusted colleague, the FBI takes over the investigation in hopes of catching the culprit before more damage is done. Former FBI Special Agent Barry Colvert, former CIA officer Sandy Grimes and former FBI Supervisory Special Agent Dell Spry recount to fellow agent Cindy Coppola the agonizing search for the deadliest traitor in American history.

#8 - Chasing The Olympic Bomber (2)

Season 4 - Episode 10 - Aired 12/5/2023

After another deadly bombing, a suspicious character in a wig is seen walking away, sparking one of the biggest manhunts in U.S. history.

#9 - Ruby Ridge: The Real Story (2)

Season 4 - Episode 4 - Aired 11/14/2023

As the FBI prepares for a final assault on the remote cabin where fugitive Randy Weaver is holed up, a gruesome discovery puts the entire mission on hold.

#10 - Terror In Times Square: Chasing a Madman

Season 4 - Episode 1 - Aired 11/7/2023

When a would-be terrorist attempts to set off a bomb in Times Square, the FBI embarks on a high-speed, high-stakes race against time to catch the bomber.

#11 - Ruby Ridge: The Real Story (1)

Season 4 - Episode 3 - Aired 11/14/2023

Following the fatal shooting of a U.S. Deputy Marshal during a stakeout of a wanted fugitive, the FBI's Hostage Rescue Team is called in.

#12 - Hunting GRAYSUIT: America's Deadly Traitor (1)

Season 4 - Episode 5 - Aired 11/21/2023

An FBI investigative specialist with no undercover training goes undercover and comes face-to-face with Robert Hanssen, a suspected spy.

#13 - FIFA: Sports' Biggest Scandal

Season 4 - Episode 12 - Aired 1/24/2024

In 2015, the FBI uncovered a deep and widespread criminal conspiracy among members of FIFA - including wire fraud, racketeering, and money laundering.

#14 - Operation Knockout: The Biggest Takedown

Season 4 - Episode 2 - Aired 11/7/2023

Following the murder of a Deputy Sheriff by a Latino gang, the FBI leads a task force in Operation Knockout, the largest anti-gang operation in US history.

#15 - Hunting a Terrorist Mastermind

Season 4 - Episode 13 - Aired 1/31/2024

When a massive bomb planted in a van explodes below the North Tower of the World Trade Center in 1993, the FBI sets out to find the bomber

#16 - The Heist: Undercover Among the Art Thieves

Season 4 - Episode 11 - Aired 1/24/2024

When Special Agent Sean Sterle receives a tip about a Los Angeles drug kingpin who knows the whereabouts of hugely valuable paintings stolen from Sweden's national museum, the FBI taps legendary undercover agent Bob Wittman, who helped recover over $300 million worth of art and artifacts from 20 countries and is called the "Indiana Jones of the FBI." Sterle and Wittman speak with fellow agent Cindy Coppola about joining forces in a daring international mission to recover a $35 million Rembrandt self-portrait.

#17 - The Disappearance of Chyenne Kircher (1)

Season 4 - Episode 7 - Aired 11/28/2023

In 2011,14-year old Chyenne Kircher disappears from her dysfunctional small-town Illinois home, leaving a convincing runaway note.

#18 - The Birmingham Church Bombing: The Long Arc of Justice (1)

Season 4 - Episode 17 - Aired 2/14/2024