When Don investigates a series of bombings, he calls in Charlie to help pinpoint the bomber. But the two disagree over who the culprit is. Is it a new terrorist,…

After meeting Irma for a date, Alan finds himself defending her when she is charged with a sex crime by protesting topless. Meanwhile, Denise finds it difficult to remain close…

Alan and Denise take on the case of a young girl whose father killed her mother after finding the mother’s whereabouts through her HMO’s website. Catherine Piper comes back into…

Horatio and the team go head-to-head with a defense attorney (guest star Sean Combs) who may be involved in a murder cover-up.

While on jury duty, Rosalee tasks Nick, Hank and Monroe to help stop a defense attorney from using his particular “Wesen wiles” to overturn what should be an open-and-shut murder…

Hank starts reflecting on an arrest he made earlier in his career regarding a man who committed murder claiming “self-defense against monsters.” With the man’s death sentence rapidly approaching and…

The discovery of a young woman’s body in the river leads to an investigation of illegal sweatshops and the enslavement of young immigrants.

Weaver rushes to the aid of her female life partner, Sandy Lopez (recurring guest star LISA VIDAL), when the firefighter is severely injured while working and must now battle for…

Abby and Neela are assigned to a month-long rotation in the neonatal intensive care unit where they experience emotional roller coasters while caring for the sick infants.

Abby comes close to breaking down trying to deal with her mother. Dr. Pratt goes for his required paramedic ride-along. Dr. Weaver confronts the man who stole her purse. Dr….

Dr. Pratt brings a gun into the ER; Dr. Weaver tries to conceal her pregnancy; a woman plots against her dying husband; Dr. Chen treats math students who overdosed on…

Abby fears the worst when her brother Eric suddenly disappears. Carter and Chen treat a frightened Chinese immigrant nanny, Tong-Yi, whom they suspect was impregnated by her employer. Meanwhile, new…

Dr. Carter reads a letter from terminally ill Dr. Green to the ER staff. Dr. Weaver lashes out at a mentally challenged patient. A terminal, homeless man continues asking for…

Drs. Corday and Greene are awkward when working together in the ER. Dr. Weaver treats victims of an intense fire that may take the life of a dear friend.

An injured and condemned murderer wants to die in the ER rather than await execution; Abby advises a neighbor to seek shelter from her abusive husband.

Abby helps a distraught boy whose mother died of a stroke; a man with schizophrenia, who once stabbed Carter and killed a doctor checks into the ER.

Benton commits perjury on the witness stand in order to gain custody of Reese. When Romano refuses to give him a more even schedule, Peter resigns and seeks a job…

Peter Benton continues his court fight against Reese’s stepfather, Roger, who seems to have the upper hand. When a woman is accidentally shot during a gas station robbery, Dr. Corday…

When a torrential rainstorm pounds Chicago, patients deluge the emergency room while Weaver speeds to an accident site. There, she finds a pregnant woman, Vicki lying injured inside a wrecked…

The BAU works with the CIA to identify a mole within that organization, whose leaks are putting operatives at risk.