Halloween night finds the ER awash with allergic or otherwise incapacitated children. Kerry tolerates a visiting candidate for chief while she waits for the official vote. Romano operates on an…

On Thanksgiving Day Carol goes into labor. She’s able to get to the ER only thanks to Luka’s help. She delivers the first baby in the ER, but the second…

Mark goes to a trauma scene with the EMTs, where he treats a gunshot victim who has a bomb strapped to himself. Later, Mark’s daughter persuades him to treat a…

A prank in a high school science class goes terribly awry, injuring a teacher and several students. Hathaway discovers Meg’s drug addiction. Weaver and Greene notice Lawrence gets easily confused.

Benton struggles with the idea of taking a DNA test to determine whether or not Reese is actually his son. As the signs continue to pile up, Kerry and Mark…

Dr. Corday begins her first day as an intern, first by being assigned to Dale Edson, then being treated as Romano’s lapdog. Kerry is interviewed for ER chief. Doug and…

Third-year med student Lucy Knight reports to the ER for the first day of her rotation. Greene takes a teacherly interest in her, helping her get acquainted, but she gets…

Dr. Corday’s father visits from overseas in an attempt to convince her to join his medical practice. Weaver suggests that Elizabeth look into alternative methods to stay in America, like…

Hathaway befriends an out-of-work waitress, Meg. Seven-months pregnant, Meg cannot afford prenatal care. Hathaway invites her to the hospital, performs free tests and helps her interview for a job in…

A recommendation from Weaver allows Jeanie to have temporary approval as a foster parent for baby Carlos. Reggie and Jeanie get married. Lucy and Kovac talk with a young woman…

When Anspaugh decides to retire as chief of staff and return to surgery, he appoints Romano as his replacement. Greene expresses reservations about the decision, but Weaver does not support…

Del Amico, Ross and Corday confront disturbing situations after the bombing of a women’s clinic. Benton comes under review for controversial actions in the OR. Jeanie endures one of the…

A 31-year-old security guard is brought in suffering from severe chemical burns, and a 21-year-old man is wheeled in after falling 75 feet into a river. Meanwhile, Benton is upset…

Ross treats a 6-month-old recovering from methadone withdrawal. A televangelist and his wife, who’s suffering from an infection, plan a broadcast from the ER. Del Amico’s old boyfriend arrives, and…

Ross and Hathaway’s jobs are in jeopardy after their unauthorized treatment of a drug-addicted 7-month-old boy is discovered. Corday loses her sponsorship. Carter suspects Del Amico’s boyfriend when drugs are…

Mark finds out Cynthia has moved. Carter’s cousin Chase is brought in because of a heroin overdose. Doug and Kerry clash after she found a flaw in his study.

Kerry starts to doubt the methods of Synergix. Carter tries to help his cousin beat his drug addiction. Jeanie becomes Scott Anspaugh’s part-time caregiver.

Another elderly rape victim is brought in. So is the rapist.

Because of benzene that’s been spread, the ER has to close. Weaver gets felled and Carter has to take the lead.

Mark treats an old lady who has been brutally raped. Carter’s grandmother visits Carol’s clinic. After he’s touched by Benton, a blind man can see again!

Al wants to move to Atlanta where he got a job offer. Jeanie however isn’t keen on moving. Carol talks to Carter’s grandmother about the clinic.

Benton has a very extraordinary and interesting case when he comes across a boy with reversed internal organs.

Jeanie believes she’s been fired because she has HIV and fights her dismissal.

Cynthia Hooper starts as the new desk clerk. Benton and Carla disagree over whether or not their son should be circumcised. Al gets in an accident at work.

His ex-wife Jennifer tells Mark he can’t see Rachel until he’s got his act together. Reece gets to go home. Al has lost his job.

While a film crew is filming in the ER, it’s Elizabeth Corday’s first day.

The ER is flooded with foster care home residents, attacked by a shooter bent on tracking down his son, who , with the help of Dr. Green, was put into…

Numerous mishaps threaten to mar Corday and Greene’s wedding day. As the very pregnant Corday becomes increasingly agitated, the presence of her bickering divorced parents does little to improve her…

Abby and Carter travel to Oklahoma to rescue Abby’s mentally ill mother and bring her back to Chicago. In Chicago, Maggie suffers from a sleeping pills overdose. At County General,…

Maggie contests Abby’s attempt to institutionalize her. Weaver treats a few bizarre patients. When Legaspi returns to work after being exonerated of sexual harassment, Weaver tries to reconcile with her….

Just when the ER is understaffed and swamped, two children who were brought in turn out to have full blown smallpox. The entire ER must be locked down. The staff…

A demented patient causes a shootout in the emergency room. After terrorizing people in the ER with a gun, she gets shot by a policeman. She soon dies. Benton later…

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…

In the series’ 150th episode, a massive train wreck mobilizes the emergency room doctors. Corday, Carter and Kovac rush to the scene. Corday falls and injures her back, bringing on…

Greene returns to work but confuses words and displays uncharacteristic anger. Eager to get out of his per diem situation, Benton agrees to a full time position. Carter visits his…

As Dr. Greene’s brain tumor begins affecting his coordination, he becomes concerned that his fate will be similar to the terminally ill patients he treats.

Weaver becomes concerned about Greene’s cognitive skills and surreptitiously calls for an official evaluation of his competency. Corday plans her wedding to Greene. Bishop Stewart returns, and Kovacs realizes the…

Carter’s day shift and Pratt’s night shift (his final shift at County) are intercut. Both men have extremely busy days. Doc Magoo’s burns down. Luka calls Carter from the Congo…

Benton and Cleo clash over his deceased nephew’s girlfriend. They finally agree to call a social worker. Benton confesses his love to Cleo. The spinal surgery malpractice suit is settled…

Chen gives birth, but insists on breastfeeding the infant before she gives it to the adoptive parents. Greene and Corday consult a brain specialist in New York City who believes…