Episodes
- S4 E1 - MayhemSeptember 23, 200842minAs the city is on high alert, the team begins to believe that they have made a mistake with the profile and that everything the terrorists have done so far may in fact just have been diversion for something even bigger.This video is currently unavailable
- S4 E2 - The Angel MakerSeptember 30, 200842minOn the anniversary of a serial killer's execution, a murder spree which appears to be connected to him begins and the team must try and understand his mind in order to stop it.This video is currently unavailable
- S4 E3 - Minimal LossOctober 7, 200844minReid and Prentiss, having gone undercover into an underground cult to investigate child abuse, get trapped inside the compound when a federal raid on it goes bad.This video is currently unavailable
- S4 E4 - ParadiseOctober 21, 200842minA serial killer targeting couples stages their bodies in a way to make their deaths look like car accidents.This video is currently unavailable
- S4 E5 - The InstinctsOctober 28, 200844minA child abduction case in Las Vegas causes Reid to have strange nightmares which appear to be connected to an event in his past.This video is currently unavailable
- S4 E6 - Catching OutNovember 3, 200842minA man is jumping trains along Highway 99, brutally killing couples in their homes whenever he stops.This video is currently unavailable
- S4 E7 - MemoriamNovember 11, 200841minDriven by his nightmares, Reid stays behind in Las Vegas to find his father in order to find out the truth about Riley Jenkins' murder.This video is currently unavailable
- S4 E8 - MasterpieceNovember 18, 200841minA serial killer turns himself in and challenges the team to find five people he has hidden somewhere before they die.This video is currently unavailable
- S4 E9 - 52 PickupNovember 25, 200842minA greatly sadistic serial killer who disembowels women and forces them to clean it up before killing them proves difficult to catch thanks to his social charm and simple, yet clever, disguises.This video is currently unavailable
- S4 E10 - Brothers in ArmsDecember 9, 200840minMorgan, an ex-cop, takes it personally when a serial killer targets police officers in Phoenix, Arizona.This video is currently unavailable
- S4 E11 - NormalDecember 16, 200842minA serial killer known as the Road Warrior is gunning down blonde women on roads in Orange County, California and the BAU suspect that the victims are surrogates and that it's only a matter of time before he kills the real one.This video is currently unavailable
- S4 E12 - Soul MatesJanuary 13, 200941minThe team suspects that a member of an affluent community is responsible for the disappearance of a young woman.This video is currently unavailable
- S4 E13 - BloodlineJanuary 20, 200944minA family consisting of two parents and their son break into a home, kill the parents and kidnap their daughter. As the investigation proceeds, the BAU team begin to suspect that what they're dealing with is bigger than they thought.This video is currently unavailable
- S4 E14 - Cold ComfortFebruary 10, 200944minA serial killer in the Olympia, Washington area has abducted four blonde, twenty-something women. When the third victim is found embalmed, the BAU are called in and suspect that the embalming is a way for him to spend more time with them.This video is currently unavailable
- S4 E15 - Zoe's RepriseFebruary 17, 200944minA copycat serial killer is recreating murder techniques used by famous killers from the past.This video is currently unavailable
- S4 E16 - Pleasure Is My BusinessFebruary 24, 200943minA high priced call girl that is killing her clients must be found and stopped.This video is currently unavailable
- S4 E17 - DemonologyMarch 10, 200943minPrentiss learns from an old friend, John Cooley, that their mutual friend, Matthew Benton, just died from a heart attack. Prentiss had not seen either man in several years, both for different reasons.This video is currently unavailable
- S4 E18 - OmnivoreMarch 17, 200944minAfter being inactive for 10 years, Hotch's first BAU case, an elusive serial killer known as the Reaper, starts killing again.This video is currently unavailable
- S4 E19 - House on FireMarch 24, 200941minWhen the kill count of a mass-murdering arsonist active in a small town reaches 31, the BAU are called in.This video is currently unavailable
- S4 E20 - ConflictedApril 7, 200942minMale college students on spring break are being raped and murdered, presumably by a man and a woman working together. The BAU are called in and suspect a shy hotel cleaner and a receptionist.This video is currently unavailable
- S4 E21 - A Shade of GrayApril 21, 200943minAn AMBER alert is activated for a young boy in Cherry Hill, New Jersey and the BAU suspect it to be the work of a pedophile who has abducted and killed two other boys.This video is currently unavailable
- S4 E22 - The Big WheelApril 28, 200944minThe team tracks down a highly obsessive-compulsive killer who targets blonde women and leaves messages to the police asking them to stop him.This video is currently unavailable
- S4 E23 - RoadkillMay 5, 200942minA serial killer in Bend, Oregon is deliberately killing people by running them over with his car.This video is currently unavailable
- S4 E24 - AmplificationMay 12, 200943minThe BAU works with the U.S. Army to find the perpetrator behind an anthrax attack on a park in Annapolis, Maryland.This video is currently unavailable
- S4 E25 - To Hell...May 19, 200943minThe team head to Canada to investigate the disappearances of a number of homeless people, drug users and sex workers and uncover something horrific in part one of the season finale.This video is currently unavailable
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