When the team works to hunt down the person who shot Tara, they discover "The Disciple" deliberately had them chasing their tails. While undergoing critical surgery, Tara gets to the root of her relationship issues.

After Voit and Ochoa are kidnapped by "The Disciple", the team races to find them. While in The Disciple's custody, Voit wrestles with keeping the monster inside him at bay.

The BAU team is called in to investigate when male victims are found with no way to identify them.

When the BAU team travels to Denver to investigate several murders, Prentiss is forced to evaluate her relationship with Special Agent Andrew Mendoza.

Prentiss and J.J. are faced with important decisions to make about their futures as the BAU travels to Beaumont, Texas to investigate a series of murdered businessmen.

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 BAU tries to get ahead of Jade and Damien who are on a killing spree. Rossi must confront an old flame to unpack the secrets behind the Gold Star program. Tyler and Rebecca attempt to gain leverage over Elias Voit's lawyer.

Rossi and Lewis enlist the help of Ramona, Voit's sole survivor, to help unlock Voit's memory. JJ and the team say goodbye to Will.

While the team works an organ harvesting case, Voit's recovery process leads him to suspect he is more likely a prisoner than victim. JJ finds a cryptic video posted to the BAU-Gate website of a masked UnSub that could be connected to Voit's network.

JJ works with Dr. Ochoa to help Voit process the truth about his violent past, and tells him that one of his followers has a message from a mysterious unsub who appears to be organizing the remaining members of Voit's serial killer network.

The team investigates a network killer who buries his victims alive, and Tara confronts Rebecca's ex who has recently re-entered her life. Ronald Graber delivers a message from his Disciple to Voit.

Network UnSubs torture and kill hostages as Voit works with the BAU to stop them. Rebecca's ex, Evan Delray, is appointed Voit's new liaison.

The team inches closer to uncovering the identity of "The Disciple", someone they believe is linked to Voit's past, but Voit's unpredictable behavior puts their progress in jeopardy.

The daughter of high-powered diplomats, Special Agent Emily Prentiss joins the team, and she must convince Gideon and Hotchner she deserves the job based on merit and not on her family connections. The BAU is then called to St. Louis to investigate two serial killers who appear to be competing with each other. By setting a trap based on one killer's profile, the team creates a media event by which to capture the second killer.

Agent Luke Alvez (Adam Rodriguez) joins the BAU team, which is tasked with capturing a killer who escaped prison with 13 other convicts at the end of last season.

The BAU heads to Bethesda, Md., to investigate four murders in the span of three days along the eastern seaboard. The crimes become personal for Alvez, when the team discovers there are ties to his time spent five years ago working alongside the DEA and the Mexican police force in pursuit of the most notorious hitman in Mexico. Alvez and his girlfriend decide to move in together.

The BAU is called to Miami to investigate a serial killer who appears to have a conflicted sexual identity.

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.

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.

The BAU travels to Pittsburgh on the hunt for a pair of suspects that appear to be working together as a team; Garcia and Morgan reveal their Valentine's Day plans for their respective significant others to each other.

Elizabeth Prentiss, a foreign ambassador and SSA Emily Prentiss' mother, seeks the aid of the BAU when a Russian immigrant is kidnapped and held for ransom.

The BAU follows the mental decline of a con artist whose schemes have become so complicated that he begins to eliminate the people involved in them.

The BAU must catch a group of serial killers that is killing exotic dancers and leaving their bodies in the cornfields of Indiana.

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.

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.