Pop (East) (POP)

Eight people are fatally poisoned at a deli in New York City, and special agents Maggie Bell and OA Zidan trace the crime to an unlikely culprit and conduct a sting operation to prevent further attacks. (Repeat).

Bell, Zidan and the team investigate the murders of 18 young women with help from a survivor associated with the deceased. (Repeat).

Special Agents Maggie Bell and OA Zidan rush to track down an active sniper with an elusive motive as the body count continues to rise. (Repeat).

Special Agents Maggie Bell and OA Zidan investigate the death of a safety inspector and its possible connection to a leak at a nuclear power plant. (Repeat).

After a senator's daughter is kidnapped and held for ransom, the FBI is called in to assist with finding the child before their time limit expires. However, in order to do so, they must dig into the senator's past for clues to who did this to his family. (Repeat).

Luka's return does little to relieve Abby, whose old habits distance her from friends and family; Gates readjusts to parenthood as Sarah settles back into life in Chicago. At County, Moretti's unexpected exit makes way for a surprising new chief, an appointment that frustrates some of the staffers. Meanwhile, a secret romance blooms between two doctors. (Repeat).

In the series' 300th episode, the Kovacs prepare to travel to Croatia, but not before Luka confronts Abby about the recent distance in their relationship. Elsewhere, the husband (Peter Fonda) of a dying patient learns a haunting family secret; and the ER staff takes time out to remember patients they have lost through the years. (Repeat).

Still stinging from Wexler's promotion to chief, Pratt decides to leave County for a hospital that will appreciate his talents. Meanwhile, a familiar face returns to the ER and confronts a dreaded eventuality; and Neela, distracted by her cousin's unexpected visit, still manages to impress her colleagues with her abilities as a doctor. (Repeat).

Abby returns from rehab and feels judged by her peers. Elsewhere, she treats a young fire victim who may have problems with her eyes, and Harold gets an ego boost after a night with Neela's cousin. (Repeat).

Teamwork takes on a new meaning for Neela as her sojourn in Ortho turns into a contact sport. Pratt hesitates when Bettina tries to move their relationship forward. Sam and Gates lock horns over work while Julia tries to allay a prison doctor's guilty conscience. (Repeat).

Pratt butts heads with a new colleague over his treatment of the interns. Meanwhile, Gates tends to a young patient's serious heart condition; Abby considers coming clean to Kovac about her affair as she travels to Croatia; and Sam discovers Gates and Julia are no longer together. (Repeat).

The BAU investigates when victims' bodies are incorporated into macabre graffiti art in Detroit. The team suspects that a notorious street artist is responsible. Meanwhile, Dr. Lewis struggles to balance her relationship with her fiancé and her work. (Repeat).

A woman is murdered in a Florida town comprised entirely of sex offenders, which leaves the BAU literally with a community full of suspects. Meanwhile, Lewis considers a career opportunity that could take her away from the BAU. (Repeat).

The BAU helps Rossi's journalist daughter investigate the disappearance of a college student. Meanwhile, the team is alarmed when Giuseppe Montolo dies in prison after he warns Morgan about the "Dirty Dozen," an underground group of hit men; and JJ returns from maternity leave. (Repeat).

Victims are kidnapped in Phoenix and forced to endure sleep deprivation. Meanwhile, JJ copes with exhaustion from juggling work and caring for her newborn son; and Hotch and Garcia deal with threats from the "Dirty Dozen," an underground hit man group. (Repeat).

After two undercover DEA agents are murdered and a third goes missing, the BAU joins the NSA to investigate whether an underground Internet drug syndicate is involved. Meanwhile, Hotch hopes the probe helps find the "Dirty Dozen" hit men ring. (Repeat).

The BAU searches for a suspect who is obsessed with medical experiments. (Repeat).

The BAU implements an elaborate strategy to take down the "Dirty Dozen" hit men ring, with Reid playing a central role. (Repeat).