The BAU team is at a crossroads as they are questioned by a Senate Committee for their retaliatory actions in the wake of Prentiss' loss, but an unexpected familiar face could help them win their case and keep the team together.

The BAU team searches rural Oklahoma when women are being found murdered after being robbed of one of their five senses. Also, JJ and Prentiss get the cold shoulder from Reid as he deals with their deception about Prentiss' presumed death.

The BAU team investigates a mass murder at an Internet security company in Charlottesville, Va., but clues reveal it is not a typical serial killer at work.

Survivors of a Boise high school massacre return to remember the event 10 years later, but the BAU team is called in when a new killer with a similar style targets the survivors. Also, Hotch is worried that his son, Jack, may be a victim of school bullying.

The BAU team investigates the abductions of young children with troubled mothers in St. Louis. Also, Rossi reconnects with his first wife who has shocking news for him.

The BAU search Californias Angeles National Forest after a number of bodies mysteriously turn up in the mountain lakes there. Also, Rossi struggles with an agonizing decision regarding his ex-wife, Carolyn.

When a series of tornadoes hits Kansas, the BAU is called in to investigate bodies of young boys that turn up in the aftermath of the storms. Also, work pressures cause tension on JJ's home front.

It’s personal for Garcia when the BAU investigate the disappearance of a woman in her survivors’ support group whose daughter went missing seven years earlier.

The BAU team looks into the real reasons behind an apparent mass suicide of a small group of youths at a military academy. Also, Hotch and Morgan butt heads when a team member could be in jeopardy.

The investigation of a series of bludgeonings in Philadelphia leads the team to the city's boxing scene; Hotch connects with a fellow runner while training for the triathlon.

A series of murders in San Francisco bearing the tell-tale signs of the infamous Zodiac Killer have the BAU wondering if the notorious serial killer has returned. Also, Reid ponders if he should be doing more with his genius abilities.

The team is called to Texas to search for a serial rapist in Houston known as "The Piano Man" who has returned and is attacking his past victims. Meanwhile, Prentiss begins to deal with the traumatic experience caused by Ian Doyle after returning to the BAU.

The BAU tries their luck in Atlantic City when the team is called in to investigate a series of ritualistic casino-related murders. Also, after a spat with her boyfriend, Kevin, Garcia thinks she and Morgan may have gotten a little too friendly with each other.

The team hunts a killer when bodies are found hidden in lifeguard towers on Southern California beaches.

The BAU team investigates a series of brutal home invasions and murders in California's Inland Empire that appear to be gang-related, but their investigation may uncover a more sinister motivation.

When the BAU travels to Atlanta to investigate the murders of women, the clues lead them to look for an unsub who is not working alone.

When married couples fostering young children end up being killed in Seattle, the BAU team looks for an unsub with a maternal-yet-murderous instinct. Also, Garcia fears a possible proposition from Kevin.

The team hunts for a kidnapper when an emaciated boy is found in the desert and another goes missing.

The BAU team heads to Oregon to investigate a series of gothic, ritualistic murders.

When Morgan's sister sees a woman who looks like their presumed-dead cousin, Cindi, it forces Morgan to confront a lie he told his family last year to provide closure and compels the BAU to reopen the case of her disappearance.

A serial killer is executed, in Oklahoma, a copycat shows up and the BAU are called to find him. Meanwhile, Prentiss gets nervous about a real estate purchase.

Rossi and the team teach college students the science of criminal profiling by taking the class through a serial-killer case that spanned 20 years.

When the BAU goes up against a gang of serial-killing bank robbers in Washington, D.C., the team tries to negotiate the situation unfolding inside the bank, but the stakes rise when one of their own becomes a hostage.

As the BAU team continues to pursue the bank-robbing serial killers, the team determines that the suspects have a bigger target in the Nation's capital, and with one of the team still a hostage, they must work quickly to diffuse an explosive situation. Also, wedding bells ring for one of the BAU, and Prentiss ponders her future.

When a Texas prisoner escapes during a transfer, he leaves behind victims with his unique trademark, sewing their mouths shut, a signature the BAU remembers as unique to the UnSub "The Silencer." While they investigate who he was and who he's become, the BAU also gets to know the newest member of the team.

When the bodies of two seemingly unrelated victims are found just hours apart in San Diego and Los Angeles respectively, the BAU suspects that that not one, but two killers are working together to commit these murders.

An UNSUB who kidnaps families with the intention of making them admit to and pay for their indiscretions.

When a legless body is found in the New Mexico desert and a second unwilling amputee shows up at the hospital, the BAU team searches for this amateur surgeon before he preys upon his next reluctant victim. Also, Reid's phone calls to a mystery woman have the team intrigued.

The team heads to Oregon as four men have gone missing.

When prostitutes in Miami are discovered murdered in a similar style to local animals found dead there, the BAU must work fast to find an unsub whose confidence is quickly escalating. Also, Morgan tries to increase Reid's athletic skills by convincing him to join the bureau's softball team.

The BAU travels to Santa Monica when burned bodies of homeless people begin showing up by the famous pier. Also, Rossi reconnects with his former Marine sergeant from Vietnam.

The BAU team goes in pursuit of a missing school bus full of children outside the Washington, D.C. area, and it becomes a race against time for them to bring them home safely.

An attendee at a popular motivational-speaker's conference in Seattle is murdered and the speaker himself disappears soon afterward. Meanwhile, Garcia is puzzled when Morgan refuses to attend a dinner honoring an old family friend.

A ritualistic killer is hunted after male bodies are found that have been physically altered. Meanwhile, Reid gets anxious at the prospect of meeting his mystery woman.

The BAU heads south to investigate a fast-moving UnSub whose signature matches that of a serial killer from 30 years ago. Also, the team learns that someone is tracking their cases and replicating crimes the BAU is solving.

When Reid discovers that his girlfriend has been kidnapped by her stalker, he and the BAU team band together to find her before it's too late.

While Reid copes with a loss in his personal life, the rest of the BAU travels to San Francisco to investigate victims discovered in the Mission District.

A writer's daughters vanish on the anniversary of their mother's disappearance, which leads the BAU to investigate the man as a possible suspect.

The BAU heads to Austin to investigate victims found there with their watches set inaccurately, a clue which may connect the crimes. Meanwhile, the UnSub stalking the BAU inches closer in his pursuit of the team.

When victims are found in Philadelphia in a similar style to victims of The Replicator, the stalker who has been tracking the BAU's every move, the team thinks this could be the break they need to try and apprehend him.

The BAU investigates victims who were documenting their personal lives and inner desires on blog posts and social media. Also, Kevin gets jealous when he learns Garcia may have a new love interest.

The BAU goes to Morgan's old neighborhood in urban Chicago in search of an unsub targeting middle-aged men, and a clue leads Morgan to believe that they are after someone connected to the man who molested him as a child.

When a time capsule in a small Colorado town is opened twenty-five years later and contains a gruesome discovery, the BAU investigates the crime and find a possible link to the death of a local police officer.

The BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner. Also, Reid continues to grieve over Maeve’s death.

The BAU travels to Los Angeles looking for an UnSub who is kidnapping nannies and the children they care for on the same day each year.

The BAU goes to Detroit to track an UnSub with a rapidly changing MO. Also, Blake's husband returns from overseas with a life-changing career proposition for her.

The Replicator zeroes in on the BAU when the killer targets one of the team as the next victim. Also, the BAU is called in to investigate a string of deaths in Manhattan tied to apparent ecstasy overdoses, and Hotch discovers that his estranged brother, Sean, is caught in the middle.

The Replicator zeroes in on the BAU when the killer targets one of the team as the next victim. Also, the BAU is called in to investigate a string of deaths in Manhattan tied to apparent ecstasy overdoses, and Hotch discovers that his estranged brother, Sean, is caught in the middle.