Criminal Minds — Season 4

Sept 200840m

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.

Oct 200841m

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.

Oct 200842m

Reid and Prentiss are taken hostage when they go under cover to investigate possible child abuse at an underground cult.

Oct 200840m

The BAU joins the manhunt to catch a serial killer who conceals the manner of his crimes by staging car accidents.

Oct 200840m

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.

Nov 200842m

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.

Nov 200840m

As Reid's investigation of a young boy's murder in Las Vegas continues, he discovers possible connections to his own past.

Nov 200839m

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.

Nov 200841m

Agents Prentiss and Todd go undercover to profile a serial killer who uses skills of persuasion to lure women into danger.

Dec 200839m

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.

Dec 200840m

The team investigates a serial killer who shoots luxury car owners on Southern California's freeways.

Jan 200941m

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

Jan 200942m

The BAU team becomes involved in the case of a family working together to abduct young girls.

Feb 200942m

The mother of an abducted child works with the BAU to apprehend a serial killer who kidnaps, murders, and embalms his victims.

Feb 200942m

The team pursues a copycat serial killer who is recreating the techniques used by past famous murderers.

Feb 200941m

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.

Mar 200942m

Agent Prentiss has a personal connection to one of the victims in a series of deaths with religious overtones.

Mar 200942m

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.

Mar 200939m

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.

Apr 200941m

The team travels to Fort Lauderdale during spring break to find a serial killer who is targeting co-eds on vacation.

Apr 200941m

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.

Apr 200942m

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.

May 200941m

An unsub who kills with his car is the subject of a BAU investigation.

May 200941m

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.

May 200941m

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.

May 200942m

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.