When people who seemingly have nothing in common are shot at random in New York City, the BAU team is called to investigate whether a single serial killer or a team working together is responsible for the killing spree.

The team uses brain fingerprinting to see if a suspected serial killer who wakes up after four years in a coma really doesn't remember any of the crimes he supposedly committed.

Morgan, Prentiss, Reid and J.J. attempt to stop a stalker before he gets close to the woman who is the object of his affection. Meanwhile, Hotch and Rossi consult on a murder case to determine if a wife who killed her husband can claim battered-woman syndrome.

Hotchner, Rossi and their team travel to Miami to catch a serial killer whose conflicted sexual identity fuels his crime spree. During the trip, J.J. meets up with a former colleague who turns out to be more than a friend.

Hotchner and his team investigate a spree of killings in a small Texas town involving a teenage boy and his girlfriend.

When the suicide rate spikes in a Pittsburgh neighborhood, the BAU team suspects the deaths may actually be the result of a serial killer who believes he is an "Angel of Death".

When Rossi decides to revisit an unsolved case from his past, the BAU team steps in to help him unravel the circumstances behind the mysterious murder of two young parents nearly 20 years before.

When the contents of a self-storage unit reveal the grisly early makings of a serial killer, Hotchner and his team must profile the contents in order to catch him.

The Behavioral Analysis Unit profiles a serial killer who abducts two teenagers and murders one, and who will kill the other teen if they don't stop him in time.

Series of murders in rural Virginia has the BAU team investigating a link between this killing spree and a similar case two decades ago.

A famous comic book artist becomes involved in the search for a serial killer in Los Angeles.

The team unites to determine if Garcia's life is being threatened by a serial killer.

The pursuit of a cannibalistic serial killer forces Morgan to question his faith. Meanwhile, Garcia meets the man of her dreams, but her first date with him ends unexpectedly.

When one half of a serial killing duo, a former militia member, commits suicide when caught by authorities, Hotch and his team must race to identify and apprehend his partner and save his victim.

Hotchner and his team must find a murderer who posts "Missing" fliers of his victims, where he knows they will see them, in advance of kidnapping and killing them.

When a child is abducted at a local mall, the BAU locks down the area and profiles the people at the scene in order to retrieve the child before it is too late.

Hotchner and the team suspect that two suspects may be working together in a series of brutal home invasions and murders taking place in a Denver suburb.

Hotchner and the team track down a serial killer who exploits his role as a psychiatrist to find out his victims worst fears, then uses that fear as a means to kill.

Hotch requests a transfer, Prentiss resigns and Gideon is missing, leaving the team three people short as they track a serial killer in Milwaukee who abducts women in very public places.

After shutting the campus down, Gideon, Hotch and the BAU team create a detailed profile of their UnSub, but when the killings on campus continue after they take a suspect into custody, the team begins to doubt themselves.