The answer depends. It might incorporate true incidents within the FBI, but it's likely a blend of facts and creative storytelling to create a compelling narrative. Not everything presented can be taken as purely factual.
The FBI in most shows or movies takes inspiration from real cases but adds fictional elements to make it more engaging. So, it's not a straightforward true story adaptation.
One memorable story could be the capture of a high - profile fugitive. The FBI used their extensive network and advanced investigative techniques to find the person who had been on the run for years.