ER - Season 1

A typical day filled with traumas packs the ER. Under pressure from his wife, Chief Resident Dr. Mark Greene considers leaving County to join a private practice that would give him a much higher salary. When a building collapses, multiple casualties are brought in. New medical students start their ER rotation, among them John Carter, an inexperienced third year student. As the day continues, Dr. Peter Benton operates on a patient with an aortic aneurysm, a procedure normally performed by senior staff; and charge nurse Carol Hathaway is brought into the ER after a suicide attempt.

Susan treats a baby in respiratory arrest. She later lobbies various departments, unsuccessfully, to admit an elderly patient suffering from dementia. The ER is inundated with a tour group and a wedding party with food poisoning from eating at the same Hofbrauhaus. Carter acts quickly to save a man whose heart has stopped. He also treats a flirtatious patient's rash. A family is critically injured when their car is hit by a habitual drunk driver. Benton's diagnosis of a patient is overridden by the man's personal physician, with dire results. Mark and Jenn celebrate her passing the bar exam. Doug finally visits a recovering Carol.

Carol overcomes a few initial jitters and heads back to work in the ER. Mark treats a woman who is a victim of domestic violence. Susan clashes with Kayson on a cardiac case. Carol learns a valuable lesson from a leukemia patient. Carter has a tough time keeping up with Benton, and cares for an Alzheimer's patient with a melodious voice. Doug struggles with his feelings for Carol. The staff celebrates Carol's return with a surprise welcome back party.

Carter is deeply affected by the death of a teenage hit and run victim, and fumbles badly when notifying the parents. Benton gets competitive with another surgical resident. Doug mishandles helping a child with a schizophrenic mother. A patient's cell phone accidentally sets off nearby electronic equipment, while another is brought in handcuffed to his mistress. Benton's zeal for his work interferes with his family obligations. Doug makes a clumsy attempt at reconciling with Carol.

A business supplies salesman in dire need of a heart transplant gathers his family around him in the ER as he prepares for the end. Doug helps an asthmatic teenage girl obtain needed medication when her mother is unable to afford it. Carter worries that he may have contracted an STD. Susan treats a teenager with alcohol poisoning. Jenn prepares to move to Milwaukee and start her new job.

The air conditioning quits on the hottest day in October. Coupled with closed ERs in two other city hospitals, the end result is an extremely hectic day. With his wife out of town and the babysitter experiencing car trouble, Mark is forced to bring Rachel to work with him. Doug treats a five-year-old suffering from a cocaine overdose. Ivan, the liquor store owner, shoots and seriously wounds a young teenager. Susan's sister Chloe drops by, wreaking havoc in Susan's life and absconding with a number of valuables. Doug hooks up with a pharmaceuticals representative.

Benton and Langworthy interview for the Starze Fellowship. A drunk Chloe throws a tantrum in the hospital and ruins Susan's birthday festivities. Jenn visits from Milwaukee but ends up having to go back sooner than expected. Carter has a good day, earning a bottle of champagne and getting three leads on an apartment. After a spontaneous kiss with Doug, Carol has second thoughts about moving in with Tag.

Mark calls in sick to spend time with his wife, leaving Doug in charge. Benton learns he was not awarded the Starze Fellowship. Carol takes care of a rape victim. Walt brings Benton's mother to the ER with a sprained ankle. Div shows signs of snapping, overreacting at the slightest provocation. The ER gets a new aide, "Bob."

Carter and Benton treat a suicidal transvestite. Doug feels like a kept man in his relationship with Linda Farrell. Carol faces an ethical dilemma when a patient entrusts her with the particulars of an accident. Div continues to battle his demons, and ends up wandering in the rain down the middle of a busy street. Carol's revelations to Tag puts their relationship to the test.

A severe blizzard leaves the ER utterly devoid of patients, and the staff takes the opportunity to goof off. Doug and Linda return from the Caribbean just as Carol makes a surprise announcement. The fun and games are quickly abandoned when a call comes from dispatch about a 32-vehicle pile-up with mass casualties. The ER goes from deserted to capacity, and all surgeons are called in. Bob surprises everyone when she makes a quick, life-saving decision, and a new ER attending, Dr. Angela Hicks, arrives.

Benton makes a critical error when he publicizes the availability of a dying man's organs before obtaining the wife's permission to harvest them, and the wife then refuses to give it. Susan discovers Div has dropped out of sight, having both quit his job and moved out of his apartment. Carter makes a move on Susan, and Chloe announces her pregnancy.

Carter fumbles his first opportunity to observe a surgery. Susan's nemesis, Dr. Kayson, makes her New Year's Day decidedly unpleasant. Chloe announces she's moving to Texas with her boyfriend. Peter and his sister try to sort out care for their ailing mother.

Carter trains Benton's new med student, Deb Chen, while Carol has her hands full with an emotionally challenged patient who's obsessed with colors. A sociologist provokes people so he can measure their reaction times for a study. Kayson brings charges against Susan in the Vennerbeck death, leading Morgenstern to question her assertiveness. Benton and Walt hunt for Peter's missing mother.

A case of apparent spousal abuse is not what it seems. Deb outshines Carter after he is up all night preparing for a presentation. Benton informs Jackie he's hired a helper for his mother. After Kayson's reprimand against Susan is denied, she has a chance to prove herself when he is brought in as a patient after suffering a heart attack. Doug meets Diane Leeds, who works in the hospital's Risk Management division, and her son, Jake.

Mark is invited to join the staff as an attending physician. Later, he treats a woman with breast cancer, who begs him to kill her. Deb wows Benton with her presentation, leaving Carter in the rear again. A poisonous snake gets loose in the ER. Benton offends Haleh, who spends her day making his job more difficult. The ER gets new crash carts, which are promptly stolen by cardiology.

Valentine's Day finds Carol and Doug caring for Tatiana, a six year old Russian girl with AIDS abandoned in the ER by her adoptive mother. Mark and Susan care for a dog hit by Officer Grabarsky. Three cheerleaders come to the ER after ingesting chocolates laced with LSD, which Deb later accidentally eats. Wendy's hand is broken in a trauma by a patient having a seizure.

Dr. Hicks berates Benton when he tries to switch shifts to attend his mother's birthday party. A teenage girl, a frequent patient of the ER, is brought in for a drug overdose. Carol wants to adopt Tatiana, but Tag isn't so keen on the idea. Doug slugs an abusive father in the lobby. Jenn accepts a job offer in Milwaukee despite Mark's offer from Morgenstern. Deb and Carter await the arrival of sub-internship applications.

Benton pulls a 48-hour shift and refuses to sleep, despite Hicks's orders, which later proves disastrous for his mother. A doctor spends the entire day studying the ER as a model for a new hospital, and offers Susan a job; he turns out to be a psych patient who wandered downstairs. Jenn tells Mark she wants a separation. Doug treats an abused young girl, and Carol receives bad news about her attempt to foster Tatiana.

A routine day filled with ordinary traumas becomes nightmarish when a distracted Mark critically misdiagnoses a pregnant woman's delivery complication. A teenager is brought in after being accidentally poisoned. Benton grapples with his own demons in the wake of his mother's collapse.

A new Chief shakes up the ER and is impressed with Susan. Mark remains deeply affected by the loss of a patient. Benton begins to realize his mother's future is not bright, and clashes with Tag regarding her hospital stay. Carter and Deb experience the strangeness brought on by the full moon coinciding with the naturally heavy Saturday night traffic

Deb and Carter compete furiously for procedures after Benton tells them their books are due a week earlier than previously announced. Deb commits a nearly deadly error on a patient while trying to keep up with Carter. Doug's relationship with Diane Leeds progresses. Benton and Jackie decide to put their mother in a home. Mark is put on trial, so to speak, in the M&M conference regarding Jodi O'Brien's case. Chloe returns.

Susan has her hands full with a pregnant Chloe. Benton goes to dinner with Jeanie. Carter makes a good impression on Dr. Swift, while Mark further alienates the new Chief when he decides to honor a family commitment rather than stay longer at the ER to help him. Doug turns down an offer to "celebrate" with Linda Farrell, instead getting more serious with Diane as he agrees to coach Jake's Little League team.

Mark and Jenn struggle to make their relationship work after he moves in with her in Milwaukee. Doug coaches Jake's Little League team. Chloe's irresponsibility wears Susan down. Carter decides to apply for both the ER sub-internship and the surgical sub-internship. Carol and Tag discuss their vows and other wedding details; he becomes upset when Carol invites Diane Leeds, knowing that she'll bring Doug. Benton exhibits a growing attraction to Jeanie. Susan discovers what happened to Div when she spies his picture in a cabbie's dating service photo book. The staff finds out that Carter comes from a wealthy family. Swift has to take over for Mark during a trauma.

On a fateful Mother's Day, several staffers in the ER face possible life changing events. Susan Lewis' sister Chloe gives birth to a beautiful baby girl. Things start to go wrong however when their mother Cookie - who had agreed to take in Chloe and the baby - suddenly decides she's done enough and Susan will have to take care of it. Carter turns down an offer for an ER sub-internship in the hopes that he'll get an offer in surgery. Dr. Hicks has news for him however. Benton's mother takes a turn for the worse. Carol Hathaway is overwhelmed with the final preparations as her wedding day approaches.

Carter faces his last day in the ER, harshly grading Benton on an evaluation report. He later rescinds the report after finding out that he received the surgical sub-internship. Tag and Carol have wedding day jitters. Chloe disappears again, abandoning little Susie with Susan. Dr. Swift changes his mind and decides to support Mark. Jake visits Doug.