ER

An out-of-control truck causes massive injuries; Greene and Weaver scheme to prevent Dr. Romano from becoming chief of staff.

Greene and Weaver clash over the treatment of a critically ill teenager; Carter stumbles into a turf battle with paramedics at the scene of an accident.

The hiring of another attending physician, considered a legend in emergency medicine, is a threat to Greene's ego.

Cleo diagnoses food poisoning in a bratty girl, then is shocked when more severe symptoms begin to surface.

An explosion in a high-school science class floods the emergency room with patients.

Hathaway tries to help a pregnant woman who refuses to change an unhealthy lifestyle.

Corday works to save the life of a rapist while Weaver and Kovac administer to his victim.

Nurse Hathaway goes into labor while on the subway; Greene entertains family at Thanksgiving dinner.

On Christmas Eve, Lucy tries to help a woman in desperate need of a heart transplant.

Jing-Mei Chen treats a runaway teenager who bitterly keeps her identity secret.

A water shutoff causes complications in the ER; Lucy fights to get a patient a new heart; Nurse Hathaway experiences postpartum depression.

New medical student Abby has a tough first day in the ER; a flu epidemic sweeps through the ER; Dr. Romano suddenly becomes ill during surgery.

Dr. Corday's domineering mother visits; Lucy cares for a law student who may be schizophrenic; rivalry between Chen and Malucci hurts patients.

On St. Valentine's Day, the emergency-room staff works to save two patients; police search for missing patient in the hospital.

Dr. Kovac works to save the life of a girl injured in a hit-and-run accident; a 14-year-old girl has cervical cancer.

Despite intense pain from his injuries, Carter returns to work and prescribes a controversial procedure. Greene tries to convince his father to undergo cancer treatment.

Dr. Kovac agonizes over decisions affecting patients with kidney failure.

Benton's current love interest, Dr. Finch, asks him to overrule Corday for surgery on a young boy; Abby advises an exhausted pregnant woman to have an abortion.

A family feud threatens a girl's chance for getting a bone-marrow transplant; Greene admits his father, who has pneumonia.

Greene shares final memories with his father; Hathaway receives flowers from a secret admirer; a 6-year-old car-accident victim says her father sexually abuses her.

Dr. Weaver encounters sloppiness, incorrect diagnoses and improper procedures among the ER staff.

After a school shooting, Kovac and Benton care for the gunman and his victims. Abby discovers Carter has been illegally injecting pain relievers. Greene and Weaver confront Carter.