Criminal Minds

The BAU team investigates a series of murders in Bakersfield, Calif., which have left the victims unidentifiable. Jennifer Love Hewitt joins the cast as FBI undercover agent Kate Callahan.

A series of abductions and murders in Seattle send the BAU seeking an UnSub who was abused in the past and is out for revenge. C.S. Lee guest stars.

When a passenger jet crashes in Colorado, the BAU team is called to build a profile around the suspicious circumstances. Eden Riegel guest stars.

When a body is discovered in Atlanta covered in scratches, the BAU finds that this death and subsequent murders could be linked to an UnSub with an obsessive skin disorder. Alicia Coppola guest stars.

When a young boy who went missing in San Diego on Halloween suddenly reappears one year later, the BAU must work fast when another trick-or-treater disappears under similar circumstances. Series star Thomas Gibson directed the episode. Gibson's son, Travis, guest stars as Jake McCauley.

The BAU is stumped to find the common denominator among male victims in Montana, making it difficult to profile the UnSub. Candy Clark guest stars.

When victims with large social media followings are found dead in Maryland, the BAU searches for an UnSub taking on the persona of an Internet urban legend.

When a prominent attorney goes missing in Boston, the BAU unearths secrets in his past which could point to the reasons for his disappearance.

The BAU investigates random murders in northern Virginia and searches for a conflicted UnSub who has an uncontrollable urge to kill but is also filled with remorse. Tina Holmes and Amber Stevens guest star.

When the BAU is called to Salt Lake City Utah to investigate a triple homicide, the search for a connection among the victims could lead them to a fugitive who could have ties to the UnSub.

When frozen bodies are found in Nevada floating in water, the BAU's investigation leads them to suspect that the victims were part of a cult that could be behind the deaths. Grant Show and Faran Tahir guest star.

The BAU searches Tallahassee for a serial killer who calls the authorities to report the crimes prior to committing murder. Series star Joe Mantegna directed the episode.

The BAU revisits its origins when they look at one of Rossi and Gideon's old cases to track a killer that got away. Series star Kirsten Vangsness co-wrote the episode with Erica Messer, one of the series' executive producers. Ben Savage and Arye Gross guest stars.

When an Indianapolis coffee shop is blown up and a hero emerges from the wreckage, the BAU tries to protect that person and his family while searching for the UnSub before more incidents occur.

Victims in California have the BAU searching for an UnSub who may have witnessed abuse as a child. Greg Grunberg guest stars.

When two guards at a privatized maximum security prison in Texas are murdered, the BAU suspects that more than one UnSub within the prison could be at work. Series star Thomas Gibson directed the episode. William Ragsdale guest stars.

The BAU is called to Wisconsin in search of a serial killer, and the team looks for a connection among the victims for clues to the UnSub.

When the wife of an up-and-coming congressman disappears, the BAU investigates his political enemies as possible suspects. Tess Harper guest stars.

When a family of four is abducted while on vacation in Barbados, the BAU is called to assist Unit Chief Jack Garrett (Sinise) and his International Unit on their investigation. Gary Sinise, Anna Gunn, Daniel Henney, Tom Everett Scott, Bonnie Somerville, and Tyler James Williams guest star.

When a Maryland family is found murdered at their dining room table, the team tracks down other family members and friends to uncover secrets that may have led to it. Edward Asner guest stars.

When three people implicated in murders claim they were attacked by a "clawed shadow monster" at the moment each crime occurred, the BAU searches for an UnSub who is controlling their minds. Series star Matthew Gray Gubler directed the episode. Bodhi Elfman, Thad Luckinbill, and Larry Merrin guest star.

When shooting victims are found in the Los Angeles area with possible links to criminal activity, the BAU searches for a vigilante UnSub. Joe Adler guest stars.

When Kate's niece Meg and her best friend are kidnapped, the BAU suspects an online predator engaged in sex trafficking. Greg Grunberg guest stars.