Dr. Romano seizes control of the ER and manages to offend everyone. Dr. Kovac asks Dr. Corday’s help in the quest to bring a sickly Croatian boy to the U.S….

Dr. Carter tries to prevent a grieving gang member from going after vengeance. Dr. Kovac races against time to save a Croatian boy’s life. A baseball player gets treatment for…

A new medical student, Michael Gallant, arrives in the ER. He’s supposed to be working under Dr. Carter’s supervision but his grandmother is unwell. Elizabeth Corday is convinced that other…

Abby’s troubled brother is missing. A car runs into a crowd of teen girls. The alderman with syphilis gives Dr. Weaver a promotion. Dr. Lewis looks forward to a blind…

Corday’s ordeal, caused by the recent infection-related deaths of several of her patients, worsens when she is closely observed by a stern taskmaster. Corday is outraged when a county investigator…

Dr. Susan Lewis arrives, looking for work in the Chicago area again. Greene hires her, over Weaver’s objection. Chen nervously attends a risk management review, accompanied by the unforgiving Weaver,…

On a busy Halloween night, Carter and Abby are the only staffers in costume when victims of an apartment building fire pack the ER. Corday takes on a new med…

Corday clashes with new surgical resident Paul Nathan regarding his intervention into the treatment of a sickly young woman, Alison, who has signed a “do not resuscitate” order. Abby wonders…

Carter is overwhelmed by patients from a rock concert riot. Benton’s former girlfriend is killed in a car accident. Newly promoted to chief resident, Chen panics and misdiagnoses a patient….

Kovacs stops to help a woman and her son whose car broke down. Steve is getting close to Alex, and Sam panics. Abby is looking for her letter whether to…

Dr. Carter, Abby and other staff of the ER are quarantined as the CDC investigate a mysterious, deadly outbreak.

Morris streets a patient without getting a psych consult, and the guy steals a tank and heads for County. Gillian is visiting Luka, and Sam’s not happy about it. Luka…

Pratt and Kovac clash over a miscarriage-prone young woman, Denny, who arrives to deliver a premature baby. Pratt wants to make heroic efforts to save the unborn child, while Kovac…

Ben Hollander is a distraught architect whose degenerating eyesight causes him despondent while a spirited new nurse, Samantha Taggart joins the staff. Elsewhere, disaster strikes when the doctors suspect a…

It’s a busy Fourth of July and Carter is the only attending working.