Beth and Jack search for a stalker with an affinity for fire; Beth meets with an exasperated college student, who claims his former roommate is aggressively harassing him.
The team investigate a teenage girl, who had a stalker break into her house, and soon realize she's not the one being targeted; Perry pays Beth an unsolicited visit at work.
Beth and Jack investigate an attack by a stalker who preys on his victims' phobias. Meanwhile, Beth learns a friend is seeing someone who, unbeknownst to both women, has ties to her.
A few days before Halloween, a girl is attacked at a costume store, with the resulting case revolving around the house the girl and her best friend have moved into, which is allegedly haunted.
Following a series of alarming attacks on a wealthy philanthropist, the TAU investigates her beleaguered ex-husband and his much younger girlfriend. Meanwhile, Amanda threatens to reveal Jack's dark past.
The TAU investigates the stalking of a young actress after she is apparently terrorized by an obsessive fan. Meanwhile, Beth receives an unsettling personal letter and Perry gains more access into her life.
When a man's quiet suburban neighborhood and home are vandalized and his family is terrorized, he is forced to reveal his nefarious past to secure protection from the TAU.
The TAU investigates when a psychiatrist is seemingly being stalked by one of his patients. However, they soon find that there is more to the case than meets the eye, while Beth makes a shocking discovery.
After a series of harrowing attacks befall two seemingly random victims, the TAU desperately searches for a connection between them before the elusive stalker strikes again.
The estranged wife of a high-profile athlete is terrorized by a stalker, which may be connected to her tell-all memoir, which is soon to be published. Meanwhile, Janice helps Beth by investigating Perry.
The Mayor of Los Angeles is attacked and the TAU must determine whether he holds a dark secret or has a real stalker. Meanwhile, Janice and Amanda try to assist Beth with her interdepartmental problem.
Beth faces a tough decision about her future, Vicki Gregg reveals her real reasons for returning to the TAU, and an unrelated incident in a stalking case leads Janice to suspect a serial killer may be on the loose.
In the series finale, Beth, Jack, Vicki and the rest of the TAU team continue their search for a serial killer, and Vicki learns some startling information about her ex-husband.
