Criminal Minds: Season 4

Episode 1: Mayhem 2008-09-24 | 40 min When 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. Episode 2: The Angel Maker 2008-10-01 | 41 min A 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. Episode 3: Minimal Loss 2008-10-08 | 42 min Reid and Prentiss are taken hostage when they go under cover to investigate possible child abuse at an underground cult. Episode 4: Paradise 2008-10-22 | 40 min The BAU joins the manhunt to catch a serial killer who conceals the manner of his crimes by staging car accidents. Episode 5: Catching Out 2008-10-29 | 40 min The 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. Episode 6: The Instincts 2008-11-05 | 42 min While 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. Episode 7: Memoriam 2008-11-12 | 40 min As Reid's investigation of a young boy's murder in Las Vegas continues, he discovers possible connections to his own past. Episode 8: Masterpiece 2008-11-19 | 39 min When 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. Episode 9: 52 Pickup 2008-11-26 | 41 min Agents Prentiss and Todd go undercover to profile a serial killer who uses skills of persuasion to lure women into danger. Episode 10: Brothers in Arms 2008-12-10 | 39 min The 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. Episode 11: Normal 2008-12-17 | 40 min The team investigates a serial killer who shoots luxury car owners on Southern California's freeways. Episode 12: Soul Mates 2009-01-14 | 41 min The 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 Episode 13: Bloodline 2009-01-21 | 42 min The BAU team becomes involved in the case of a family working together to abduct young girls. Episode 14: Cold Comfort 2009-02-11 | 42 min The mother of an abducted child works with the BAU to apprehend a serial killer who kidnaps, murders, and embalms his victims. Episode 15: Zoe's Reprise 2009-02-18 | 42 min The team pursues a copycat serial killer who is recreating the techniques used by past famous murderers. Episode 16: Pleasure Is My Business 2009-02-25 | 41 min The team searches for a female suspect who uses her professional skills as a high class call girl to lure and kill high-powered executives. Episode 17: Demonology 2009-03-11 | 42 min Agent Prentiss has a personal connection to one of the victims in a series of deaths with religious overtones. Episode 18: Omnivore 2009-03-18 | 42 min Agent 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. Episode 19: House on Fire 2009-03-25 | 39 min The 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. Episode 20: Conflicted 2009-04-08 | 41 min The team travels to Fort Lauderdale during spring break to find a serial killer who is targeting co-eds on vacation. Episode 21: A Shade of Gray 2009-04-22 | 41 min When 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. Episode 22: The Big Wheel 2009-04-29 | 42 min When 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. Episode 23: Roadkill 2009-05-06 | 41 min An unsub who kills with his car is the subject of a BAU investigation. Episode 24: Amplification 2009-05-13 | 41 min When 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. Episode 25: To Hell... (1) 2009-05-20 | 41 min The 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. Episode 26: ...And Back (2) 2009-05-20 | 42 min The 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.