It’s Susan’s last day. Carol stands up for her nurses when one of them is being rotated to another department.

Mark and Kerry have to create a policy regarding HIV-positive employees, which leads to gossip amongst the nurses.

Carol has to fire two of the nurses. Meanwhile, Gant feels Benton is too hard on him.

Carter feels guilty about Gant’s death. Benton doesn’t want to talk about it.

Susan is forced into the role of parent when Chloe gives birth and both Chloe and her mother, Cookie, shirk responsibility. Doug is surprised and a bit frightened when Diane…

While Mark is anxious about Susan’s return from her holiday, Doug and Carol ride along with the health mobile.

While on their helicopter flight rotation, Mark and Susan find an injured family of four who they bring to the ER.

Encouraged by Carol, Mark finally asks Susan out. Benton tries to save a boy, despite the fact Doug thinks he’s brain dead.

It’s the first day of Carter’s internship. He has a 36 hour shift and overnight he has to cover the ER, the ICU as well as the surgical patients.

While the whole staff is worried the ER might close, Jeanie has her own problems in dealing with being HIV-positive.

The ER docs tend to three teenagers who were in an accident on the way to their senior prom. Greene and Carter treat the most severely injured, a boy suffering…

Carol’s pregnancy becomes public knowledge as she learns that she’s having twins. Lucy has problems trying to go off Ritalin. Peter learns Carla plans to move to Germany. Kerry finds…

Greene tries to help Mobalage when he’s about to be deported. Kerry tries to save a woman she believes is her birth mother. Hathaway decides to have Doug’s child. Benton…

Greene prepares to bury his father. Chen worries about Carter’s mood swings. After witnessing the interaction between a dying woman and her family, Hathaway realizes she wants her family together…

Romano forces Benton to choose between the trauma and cardiothoracic fellowships. Carol worries that she may have lost her child. Corday and Greene bond on the way to a medical…

The hospital suffers through a series of power outages. Carol’s decision to send Doug a fax about her pregnancy is thwarted by the power outages. The staff is on alert…

Carter seeks psychiatric help because he can’t sleep. He then visits the wife of his attacker. Weaver returns to work after her suspension. Hathaway and Kovac share a kiss.

Weaver reprimands Carter for doing a dangerous procedure without consulting Kovac. She also talks to Hathaway about Hathaway’s lack of focus on the job. And while treating a 6-year-old patient…

Chen’s patient refuses to reveal to his daughter that she might have inherited a terrible disease from him. Weaver defies Romano’s authority and performs a procedure that gets her suspended….

Greene assists paramedics in treating injured children at a school bus accident. En route, Doug and Jeanie survive their own accident. Kerry stops Doug from treating Jeanie…or any other patient….

After Corday refuses to perform exploratory surgery on Cleo’s patient, Cleo enlists Benton’s help, infuriating Corday. Abby cares for a pregnant woman with five children who wants an abortion. Greene…

Kovac witnesses an accident and saves the young victim’s life. Carter slowly recovers from his brutal attack and undergoes excruciating physical therapy. Hathaway helps two sexually active 14-year-old girls.

Even though he suffers from intense pain due to his stabbing injuries, Carter returns to work and prescribes a controversial procedure for a suicidal patient. Greene tries to convince his…

Doug faces possible criminal charges after Ricky Abbott dies when Ross bypasses system lockouts to enable Joi to give Ricky a lethal dosage of dilaudin. Doug is delegated to desk…

Benton’s attempts to get away to Carla and Reese on Christmas Eve are continually thwarted by Romano, culminating in Benton forcing the drunken Romano away from a patient. Carter believes…

Dr. Greene and Corday bond with their parents, Lucy cares for a patient with a psychotic break, and Valentine’s Day celebrations in the ER end tragically for one of the…

Amanda Lee’s obsession with Dr. Greene comes to a head when Mark inadvertantly digs up old med school records damaging to her career. Carter tries to save Lucy from Edson’s…

Carter and Lucy are discovered and the staff struggles to save them and go on with normal patient care.

Doug jeopardizes future federal grants for the entire ER when he breaks a double blind study by giving a sample drug to an ailing patient. Doyle lodges a sexual harassment…

Lucy’s patient finally gets a heart transplant but does not survive. The transplanted heart will now go to another recipient. Greene interferes in a gay domestic situation. Corday tricked her…

Carter plays tour guide for Ruth Johnson, who was born in the hospital 100 years ago to the day, and her large family. Carol treats a boy who was hit…

Two boys brought in after a fight at school leads Cleo to discover that one of them has been injecting himself with hormones. Hathaway’s obstetrics nurse, Abby Lockhart, joins the…

Carter and Lucy scramble across Chicago to find a dying girl’s father who’s a perfect match for her very rare blood type. Benton operates without transfusions to save the little…

After Mark saves a 16-year-old assault victim in a daring rescue, he tries to convince the boy to leave the streets for a shelter. Carter loses his beard when two…

Kovac and Haleh take care of Hathaway’s twins so the new mother can finally get some rest. The job transfer for Carla’s husband does not get approved allowing Reese to…

Dr. Corday commits a deadly error after being on-call for nearly 36 hours straight. Peter visits Dr. Kotlowitz and receives encouragement regarding a cochlear implant for Reese. Dr. Amanda Lee,…

Weaver tries to save the life of a rape victim while Corday struggles with feelings of disdain as she is forced to save the rapist. Cleo treats a teenage alcoholic…

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…