Season 4
26 episodes · Sep 23, 2008
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S4E1Mayhem
Sep 24, 200840mWhen an SUV carrying members of the team explodes, the rest of the team fights to save them and catch the terrorists responsible for the bombing.
S4E2The Angel Maker
Oct 1, 200841mA series of murders is linked to a serial killer executed a year earlier, and the BAU team must find the link between the dead killer and the new spate of crimes.
S4E3Minimal Loss
Oct 8, 200842mReid and Prentiss are taken hostage when they go under cover to investigate possible child abuse at an underground cult.
S4E4Paradise
Oct 22, 200840mThe BAU joins the manhunt to catch a serial killer who conceals the manner of his crimes by staging car accidents.
S4E5Catching Out
Oct 29, 200840mThe BAU investigates a series of murders that appear to be connected to a killer who jumps trains and chooses his victims based on their proximity to the railway.
S4E6The Instincts
Nov 5, 200842mWhile investigating the abduction of a young boy in Las Vegas, Dr. Reid starts to have dreams that might help reveal buried memories from his childhood.
S4E7Memoriam
Nov 12, 200840mAs Reid's investigation of a young boy's murder in Las Vegas continues, he discovers possible connections to his own past.
S4E8Masterpiece
Nov 19, 200839mWhen a narcissistic psychopath confesses he has killed seven people and more will die, the team must locate his latest victims before it is too late.
S4E952 Pickup
Nov 26, 200841mAgents Prentiss and Todd go undercover to profile a serial killer who uses skills of persuasion to lure women into danger.
S4E10Brothers in Arms
Dec 10, 200839mThe BAU team hunts for a serial killer who targets members of the police department in Phoenix, Ariz., a case that hits close to home for Morgan, a former cop.
S4E11Normal
Dec 17, 200840mThe team investigates a serial killer who shoots luxury car owners on Southern California's freeways.
S4E12Soul Mates
Jan 14, 200941mThe BAU team suspects a member of an affluent community in Atlanta is responsible for the disappearance of a local young woman and that the suspect may have worked with an accomplice
S4E13Bloodline
Jan 21, 200942mThe BAU team becomes involved in the case of a family working together to abduct young girls.
S4E14Cold Comfort
Feb 11, 200942mThe mother of an abducted child works with the BAU to apprehend a serial killer who kidnaps, murders, and embalms his victims.
S4E15Zoe's Reprise
Feb 18, 200942mThe team pursues a copycat serial killer who is recreating the techniques used by past famous murderers.
S4E16Pleasure Is My Business
Feb 25, 200941mThe team searches for a female suspect who uses her professional skills as a high class call girl to lure and kill high-powered executives.
S4E17Demonology
Mar 11, 200942mAgent Prentiss has a personal connection to one of the victims in a series of deaths with religious overtones.
S4E18Omnivore
Mar 18, 200942mAgent Hotchner revisits the first case he worked at the BAU when details come forth that one of the deadliest serial killers in New England's history has struck again after a 10-year hiatus.
S4E19House on Fire
Mar 25, 200939mThe BAU team must track down a serial arsonist who instills fear in a small town by setting fire to community meeting places and killing several residents in the process.
S4E20Conflicted
Apr 8, 200941mThe team travels to Fort Lauderdale during spring break to find a serial killer who is targeting co-eds on vacation.
S4E21A Shade of Gray
Apr 22, 200941mWhen profiling a series of child abductions and murders, the team discovers that one of the cases may not be the handiwork of the serial killer they apprehended.
S4E22The Big Wheel
Apr 29, 200942mWhen the team is sent a videotape from a serial killer detailing one of his crimes, they discover a hidden message asking them to help him stop his murderous ways.
S4E23Roadkill
May 6, 200941mAn unsub who kills with his car is the subject of a BAU investigation.
S4E24Amplification
May 13, 200941mWhen a new type of chemical warfare is released into the open air, the BAU must act quickly to find the source before any more innocent people are exposed.
S4E25To Hell... (1)
May 20, 200941mThe BAU tracks a serial killer who chooses junkies, prostitutes and the homeless off the streets of Detroit as his victims and takes them across the border into Canada, and an agent's life is in peril.
S4E26...And Back (2)
May 20, 200942mThe BAU tracks a serial killer who chooses junkies, prostitutes and the homeless off the streets of Detroit as his victims and takes them across the border into Canada, and an agent's life is in peril.