A Chicago building collapses and everyone in the ER must overcome their personal dramas to save lives in a crisis. New medical students report for duty, including a new trainee, the young and inexperienced John Carter.
Dr. Greene deals with an man having trouble letting go of his dying wife. Dr. Ross works up the nerve to visit Carol after her attempted suicide. An attractive patient and an outbreak of food poisoning bedevils Carter.
Carol returns after her eight-week absence. Carter finds himself watching over a mysterious, mentally ill singing woman. Susan clashes with Dr. Kayson over a diagnosis. Dr. Greene treats a domestic violence victim.
Carter contacts the wrong parents to inform them that their son is dead. A married heart-attack patient arrives handcuffed to his mistress. Benton clashes with another surgeon over a hit-and-run patient.
ER staff tend to a dying heart transplant candidate. Carter worries that he may have contracted an STD from Liz. Ross admonishes a woman for not buying her daughter asthma medicine. Jenn Greene prepares to move to Milwaukee.
With the hospital air conditioning failing during a heatwave, Dr. Ross treats a six-year-old suffering from a cocaine overdose. Benton and Langworthy try to save a boy shot in self-defense. Susan's sister wreaks havoc.
Doug's hopes regarding Carol take a positive turn after the two of them kiss following a stressful trauma. Benton and Langworthy both interview for the Starzl fellowship. A drunk Chloe throws a tantrum in the hospital.
Dr. Ross tries to maintain order at the ER on Greene's day off. Hathaway treats a rape victim who is afraid to cooperate with police. Carter works on a high school wrestler who starved himself to make weight.
It's Thanksgiving and the ER treat an animal rights activist who was attacked by the turkey he was trying to save. Doctors help a suicidal transgender woman and try to save two boys who killed a girl in a car accident.
The ER goes from completely empty to jammed beyond capacity during a chaotic snowstorm that caused a 32-car expressway pileup. Ross and Linda return from the Caribbean just as Carol makes a surprise announcement.
It's Christmas Eve, and Benton makes a critical error when he announces the availability of a dying man's organs before obtaining the next-of-kin's permission. Ross shows up at Hathaway's engagement party uninvited.
Carter struggles through his first surgery. Dr. Kayson makes Susan's New Year's Day decidedly unpleasant. Ross teaches a teen mother how to nurse her baby. Benton's sister insists they place their mother in a nursing home.
Kayson formally charges Lewis with negligence in the death of a patient. A customs agent brings in a suspect whose intestines are packed with contraband. Benton is called out of surgery to find his senile mother.
Susan is formally charged with negligence but then has a chance to prove herself when Kayson is brought in as a heart patient. Deb outshines Carter in a presentation. A case of apparent spousal abuse is not what it seems.
Greene is surprised with a new job offer, while a terminally ill breast cancer patient asks him to help her die. New crash carts for the ER are stolen by cardiology. Ross takes an interest in a hospital employee, Diane Leeds.
Carol worries about a Russian girl with AIDS who is brought in and then abandoned by her foster mother. Kayson asks Susan to be his Valentine. Deb accidentally consumes LSD-laced chocolates.
Carter mistakenly thinks it's Benton's birthday and hires belly dancers as a celebratory surprise. Dr. Ross faces disciplinary action after assaulting a man in the ER who he believes kicked his own daughter out of a window.
Jennifer informs Mark that she wants a divorce. Benton runs on no sleep for 48 hours, leading to trouble. Carol may not be able to adopt Tatiana after all. Susan is fascinated by a doctor she meets - but the man is a fraud.
Greene misdiagnoses a pregnant patient, leading to a long and arduous surgery. Benton deals with the aftermath of his mother's fall as she heads to surgery with a broken hip. (Emmy Award winning episode)
The moon is full and so is the ER. Hathaway's patient believes that he is a werewolf. Dr. Greene is still haunted by the death of Jodi O'Brien and isn't sure he can function as a doctor. Benton tends to his sick mother.
Dr. Greene is still having trouble dealing with cases in the ER and faces a medical review. Benton tells his mother that she must be placed in a nursing home. Deb's rivalry with Carter causes her to make a disastrous mistake.
Helpless to do anything more for his mother, Dr. Benton intends to heal every patient he sees. Greene's attempts to save his marriage lead to more trouble with the new ER chief. Ross makes plans with Diane and her son, Jake.
A Catholic school girls' basketball team gets treated for meningitis. The staff learn that Carter comes from a wealthy background. Hathaway has trouble writing her wedding vows. Susan discovers what happened to Div.
Lewis delivers her sister's baby. Ross sees an old lover again, jeopardising his relationship with Diane. Carter rejects a position in the ER as he thinks he'll be offered a surgical position. Benton receives some bad news.
Greene is offered an attending position at the hospital but also learns that he's being sued for malpractice. Tag and Hathaway prepare for their wedding day. Carter does his last day of ER rotation and drops a bomb on Benton. (Final)
The doctors at Country General Hospital in Chicago deal with personal and professional challenges as they go about their day in the frantic emergency department, faced with heart rendering dilemmas.
Kayson formally charges Lewis with negligence in the death of a patient. A customs agent brings in a suspect whose intestines are packed with contraband. Benton is called out of surgery to find his senile mother.
