When Rachel visits her old college to appear on a radio call-in show to discuss a series of ongoing sexual assaults on campus, the case takes a peculiar personal turn when the rapist repeatedly dials up to mock her on-air, prompting an ongoing mind game of cat-and-mouse between them. On other fronts, Rachel finds herself drawn again to an old flame (guest star Mark Dobies) who is now married to her good friend and later meets the therapist (guest star Joe Flanigan) assigned to her brother's drug rehabilitation. Likewise, George slips in his shaky bid to end his own addiction to painkillers.

While shopping in a convenience store with his girlfriend Kate (guest star Samantha Smith), Agent John Grant intercedes during a robbery, but when Kate is wounded and fights for her life, Rachel and Bailey are concerned that he will mete out his own justice outside the law. Even John's shooting of a suspect comes under review, prompting him to angrily resign and grapple with his overwhelming emotions of guilt for Kate's grave condition

Jarod and Rachel Burke discover that the two dirty Secret Service agents, who are their most direct link to the killers of a fellow agent, are found slain, forcing them to begin their investigation all over again. However, while romantic sparks fly between the pair, Jarod suddenly disappears and is tortured by the murderer, who is on a crazed mission to eliminate everyone he thinks is involved in the agency's corruption. The crossover starts on The Pretender S04E10 Spin Doctor (I).

Rachel and the VCTF team search for a serial killer (guest star Greg Kean) who strangles women with knots of their own hair, but when the latest victim proves to be the daughter of powerful mob boss James Perrone (guest star Ray Wise), the FBI profiler must gain the grieving father's confidence to learn more about her habits. Meanwhile, Rachel is under pressure from the Bureau's Organized Crime Division to take advantage of her access to Perrone and wear a wire to trick him into confessing to a fellow mobster's murder, thereby ending a lengthy investigation.

Rachel and Bailey respond to the growing list of isolated elderly men and women who are strangled while riding the rails in the Southwest, and Rachel notes cigarette burns that indicate the young killer (guest star Samuel Bliss Cooper) must have been a victim of abuse as well. While the slayer eyes his next targets, the VCTF theorizes that the dead must be surrogates for an angry drifter who feels rejected by society

As Christmas nears, Rachel and the VCTF work into the night in search of a twisted serial killer (guest star Ben Bode) who goes online to select his victims, all of whom are carefully screened, seeking a candidate he can make over into his ideal woman. At the same time, Rachel is surprised when her troubled brother, Danny (guest star Rafael Sbarge), drops in from out of town and displays telltale signs of substance abuse. Also, Rachel confronts George about his own addiction to pain pills and other drugs.

When a series of random murder victims are found on the streets of St. Louis, Rachel and the VCTF team believe the slayer is a military veteran who uses weapons of opportunity, and their focus shifts to an incoherent, ranting homeless person (guest star Jeremy Roberts)who fits the profile. However, Rachel wonders if she should widen her field of suspects to include any ex-serviceman -- and trained killer -- who is susceptible to an altered state psychosis. Back at headquarters, computer whiz George ignores his increasing reliance on prescription pain pills while recovering from a car accident.

When Rachel and Bailey investigate a series of Ohio murders in which the mutilated victims are cheating husbands, they suspect that the killer is the vengeful boyfriend (guest star L.L. Ginter) of a woman (guest star Amanda Wyss) common to all of the dead men -- until she offers an unconvincing confession. Meanwhile, the VCTF team must contend with a local sheriff who wants to join their force, Grace must deal with her crumbling marriage and new pregnancy, and George is left limping after a painful car accident

An obsessed Malone is haunted by an unsolved case in Georgia concerning several teenaged girls who were slain with a knife 15 years ago, and when more older victims are suddenly found - marked with slashes on their bodies -- his focus zeroes in on their original prime suspect who has resurfaced in the area. Once he has the VCTF team on board, he enlists Rachel's help to connect the two crime sprees but his decision to exhume the earlier victims understandably draws the wrath of their ever-grieving parents.

Now a member of the VCTF team, newly relocated Agent Rachel Burke sorts through a series of murders where the killer singles out successful career women and subjugates them to humiliating housework and compulsive cleaning before posing them naked in kitchens or bathrooms. While Rachel narrows in on a suspect (guest star Scott Allen Campbell) whose timid, fearful wife (guest star Paula Malcomson) may be the missing link, she must first overcome her combative relationship with an increasingly skeptical John

A kidnapped Sam (Ally Walker) stalls for time as the murderous Jack of All Trades (Dennis Christopher) twists the facts hoping to convince her that she too will kill -- when the subject and timing are right -- while a recovering Bailey (Robert Davi) and new profiler Rachel Burke (Jamie Luner) grope for clues about Jack's hideout. But Jack shows a new card when he lures Sam's young daughter, Chloe (Evan Rachel Wood), into his web of deceit by convincing her that her mother was responsible for her father's slaying.

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