Criminal Minds: Season 4
Season 4 of Criminal Minds, the fourth installment of the series, comprises 26 episodes that extend the ongoing storyline of the FBI's Behavioral Analysis Unit. The elite team of profilers continues to apply investigative psychology to track and apprehend the nation’s most dangerous offenders. Building on the methods introduced in earlier seasons, the unit confronts a variety of cases that test their analytical skill
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- The series follows an elite FBI Behavioral Analysis Unit that profiles violent offenders.
- The team uses investigative psychology to anticipate and counter criminal behavior.
- Earlier seasons established that catching a criminal requires thinking like one.
- The show blends crime, drama, and mystery with a mature (TV‑MA) tone.
Season overview
Season 4 of Criminal Minds, the fourth installment of the series, comprises 26 episodes that extend the ongoing storyline of the FBI's Behavioral Analysis Unit. The elite team of profilers continues to apply investigative psychology to track and apprehend the nation’s most dangerous offenders. Building on the methods introduced in earlier seasons, the unit confronts a variety of cases that test their analytical skills and teamwork. Throughout the season, the series maintains its focus on the principle that to capture a criminal, investigators must think like one. The narrative arc emphasizes the procedural and emotional challenges faced by the team as they pursue perpetrators across the United States, reinforcing the show's blend of crime, drama, and mystery. The season retains the series' TV‑MA rating, reflecting its mature treatment of violent and psychological themes. Each episode presents a self‑contained investigation while contributing to the broader development of the Behavioral Analysis Unit’s methodology. The show's format continues to blend procedural investigation with character‑driven moments, illustrating how the profilers balance personal pressures with professional duties.
Episode Guide
Season 4 Progress Shield
Mayhem
Sep 24, 2008
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.
The Angel Maker
Oct 1, 2008
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.
Minimal Loss
Oct 8, 2008
Reid and Prentiss are taken hostage when they go under cover to investigate possible child abuse at an underground cult.
Paradise
Oct 22, 2008
The BAU joins the manhunt to catch a serial killer who conceals the manner of his crimes by staging car accidents.
Catching Out
Oct 29, 2008
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.
The Instincts
Nov 5, 2008
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.
Memoriam
Nov 12, 2008
As Reid's investigation of a young boy's murder in Las Vegas continues, he discovers possible connections to his own past.
Masterpiece
Nov 19, 2008
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.
52 Pickup
Nov 26, 2008
Agents Prentiss and Todd go undercover to profile a serial killer who uses skills of persuasion to lure women into danger.
Brothers in Arms
Dec 10, 2008
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.
Normal
Dec 17, 2008
The team investigates a serial killer who shoots luxury car owners on Southern California's freeways.
Soul Mates
Jan 14, 2009
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 accompli
Bloodline
Jan 21, 2009
The BAU team becomes involved in the case of a family working together to abduct young girls.
Cold Comfort
Feb 11, 2009
The mother of an abducted child works with the BAU to apprehend a serial killer who kidnaps, murders, and embalms his victims.
Zoe's Reprise
Feb 18, 2009
The team pursues a copycat serial killer who is recreating the techniques used by past famous murderers.
Pleasure Is My Business
Feb 25, 2009
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.
Demonology
Mar 11, 2009
Agent Prentiss has a personal connection to one of the victims in a series of deaths with religious overtones.
Omnivore
Mar 18, 2009
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-ye
House on Fire
Mar 25, 2009
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.
Conflicted
Apr 8, 2009
The team travels to Fort Lauderdale during spring break to find a serial killer who is targeting co-eds on vacation.
A Shade of Gray
Apr 22, 2009
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.
The Big Wheel
Apr 29, 2009
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.
Roadkill
May 6, 2009
An unsub who kills with his car is the subject of a BAU investigation.
Amplification
May 13, 2009
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.
To Hell... (1)
May 20, 2009
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 agen
...And Back (2)
May 20, 2009
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 agen