Amplification

May 13, 2009

86.0%

Criminal Minds - S4 - E24

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.

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Criminal Minds: Season 4 - 26 Episode s

4x1 - Mayhem
September 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.
4x2 - The Angel Maker
October 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.
4x3 - Minimal Loss
October 8, 2008
Reid and Prentiss are taken hostage when they go under cover to investigate possible child abuse at an underground cult.
4x4 - Paradise
October 22, 2008
The BAU joins the manhunt to catch a serial killer who conceals the manner of his crimes by staging car accidents.
4x5 - Catching Out
October 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.
4x6 - The Instincts
November 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.
4x7 - Memoriam
November 12, 2008
As Reid's investigation of a young boy's murder in Las Vegas continues, he discovers possible connections to his own past.
4x8 - Masterpiece
November 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.
4x9 - 52 Pickup
November 26, 2008
Agents Prentiss and Todd go undercover to profile a serial killer who uses skills of persuasion to lure women into danger.
4x10 - Brothers in Arms
December 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.
4x11 - Normal
December 17, 2008
The team investigates a serial killer who shoots luxury car owners on Southern California's freeways.
4x12 - Soul Mates
January 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 accomplice
4x13 - Bloodline
January 21, 2009
The BAU team becomes involved in the case of a family working together to abduct young girls.
4x14 - Cold Comfort
February 11, 2009
The mother of an abducted child works with the BAU to apprehend a serial killer who kidnaps, murders, and embalms his victims.
4x15 - Zoe's Reprise
February 18, 2009
The team pursues a copycat serial killer who is recreating the techniques used by past famous murderers.
4x16 - Pleasure Is My Business
February 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.
4x17 - Demonology
March 11, 2009
Agent Prentiss has a personal connection to one of the victims in a series of deaths with religious overtones.
4x18 - Omnivore
March 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-year hiatus.
4x19 - House on Fire
March 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.
4x20 - Conflicted
April 8, 2009
The team travels to Fort Lauderdale during spring break to find a serial killer who is targeting co-eds on vacation.
4x21 - A Shade of Gray
April 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.
4x22 - The Big Wheel
April 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.
4x23 - Roadkill
May 6, 2009
An unsub who kills with his car is the subject of a BAU investigation.
4x24 - 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.
4x25 - 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 agent's life is in peril.
4x26 - ...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 agent's life is in peril.

4x1 - Mayhem

4x2 - The Angel Maker

4x3 - Minimal Loss

4x4 - Paradise

4x5 - Catching Out

4x6 - The Instincts

4x7 - Memoriam

4x8 - Masterpiece

4x9 - 52 Pickup

4x10 - Brothers in Arms

4x11 - Normal

4x12 - Soul Mates

4x13 - Bloodline

4x14 - Cold Comfort

4x15 - Zoe's Reprise

4x16 - Pleasure Is My Business

4x17 - Demonology

4x18 - Omnivore

4x19 - House on Fire

4x20 - Conflicted

4x21 - A Shade of Gray

4x22 - The Big Wheel

4x23 - Roadkill

4x24 - Amplification

4x25 - To Hell... (1)

4x26 - ...And Back (2)

S1: Season 1

S2: Season 2

S3: Season 3

S4: Season 4

S5: Season 5

S6: Season 6

S7: Season 7

S8: Season 8

S9: Season 9

S10: Season 10

S11: Season 11

S12: Season 12

S13: Season 13

S14: Season 14

S15: Season 15

S16: Season 16: Evolution

S17: Season 17: Evolution Season 2

S18: Season 18: Evolution Season 3