Criminal Minds: Season 4

The BAU investigates a series of murders that appear to... More be connected to a killer who jumps trains and chooses his victims based on their proximity to the railway.

While investigating the abduction of a young boy in Las... More Vegas, Dr. Reid starts to have dreams that might help reveal buried memories from his childhood.

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

When a narcissistic psychopath confesses he has killed seven people... More and more will die, the team must locate his latest victims before it is too late.

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

The BAU team hunts for a serial killer who targets... More members of the police department in Phoenix, Ariz., a case that hits close to home for Morgan, a former cop.

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

The BAU team suspects a member of an affluent community... More in Atlanta is responsible for the disappearance of a local young woman and that the suspect may have worked with an accomplice

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

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

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

The team searches for a female suspect who uses her... More professional skills as a high class call girl to lure and kill high-powered executives.

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

Agent Hotchner revisits the first case he worked at the... More 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.

The BAU team must track down a serial arsonist who... More instills fear in a small town by setting fire to community meeting places and killing several residents in the process.

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

When profiling a series of child abductions and murders, the... More team discovers that one of the cases may not be the handiwork of the serial killer they apprehended.

When the team is sent a videotape from a serial... More killer detailing one of his crimes, they discover a hidden message asking them to help him stop his murderous ways.

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

When a new type of chemical warfare is released into... More the open air, the BAU must act quickly to find the source before any more innocent people are exposed.

The BAU tracks a serial killer who chooses junkies, prostitutes... More 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.

The BAU tracks a serial killer who chooses junkies, prostitutes... More 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.