Carter struggles with his drug addiction and Greene returns from holiday to find the ER in a mess. Benton has a tough interview for a supervisor's job. Meanwhile, Chen keeps quiet about her pregnancy.
Carter runs into Abby at an Alcoholics Anonymous meeting, Abby takes pity on a young couple whose premature baby was born too early, while Greene and Corday redefine their relationship
Benton learns the sobering price of a previous challenge to the authority of Romano, and Carter struggles on his first day back at work while taking care of a competent young paraplegic
A frustrated Dr Benton desperately searches for a new position at any local hospital but soon learns that he has been blackballed by Dr Romano. Kovac and Abby are victims of a mugging.
A helicopter accident strands Greene with a dangerously weak heart patient, Benton oversees the overloaded emergency room and Carter suffers another loss
Abby is shocked when her mother visits her, and complications arise when Greene and Corday try to escape the ER for a romantic weekend. Chen decides that she will give her baby up for adoption.
A heavily-pregnant Chen is surprised by a visit from her mother, Carter misdiagnoses a genuinely sick man and there's good and bad news for both Corday and Greene
Benton learns who killed his nephew from a young girl gang member, Corday undergoes questioning in a malpractice suit and Greene receives more devastating news
Chen gives birth, but giving away her child proves difficult, Greene and Corday consult a brain specialist in New York who appears optimistic, and Carter fights fatigue and temptation
Corday comforts Greene as he undergoes dangerous brain surgery in New York. Back in Chicago, Romano tries to save a guilt-ridden father with a serious heart condition.
Kovac treats a drunk driver who's tearing apart a young family, Corday gets news about her malpractice suit, then doubts her competence as a surgeon and Carter confesses his recent lapse to Weaver
Weaver regrets reporting an illegal sweatshop after it is torched with the workers inside, Benton takes a new job, Greene displays erratic behaviour, and Carter's kept away from controlled narcotics
Kovac has to treat an ailing Bishop Stewart and a 16-year-old in need of his third heart transplant. Carter takes Abby to a charity event where she has an unfortunate encounter.
Greene is furious when his post-operative competency is challenged, Kovac undergoes a crisis of faith and Carter struggles to save the life of a child who has caught measles
A train accident scrambles the ER and Kovac, Carter and Corday are overwhelmed by the carnage at the site as they work to save an impaled mother
Weaver fears for her own reputation when Legaspi is accused of sexual harassment
Benton is a horrified bystander when a patient causes a shootout in the emergency room. Corday makes a decision about her future, and Carter is interested in a cute intern.
Mishaps threaten to ruin Corday and Greene's wedding day while patients flood into the ER following an accident, and the presence of Corday's argumentative parents does nothing to improve her mood
Abby and Carter travel to Oklahoma to rescue Abby's mentally ill mother, while Corday endures a lengthy birth, and Maggie overdoses on sleeping tablets with Kovac frantic in his attempts to revive her
A startled Abby discovers that her suicidal mother is due to appear in court, while Dr. Benton injures his hand when he helps a fallen biker, and Carter deals with a woman who is bleeding heavily
Abby sees a ray of hope in the care of her mentally unbalanced mother. Meanwhile, Dr. Benton's ex-girlfriend Carla comes face-to-face with his new love, Cleo, and the two women clash over Reese's care
The ER is overwhelmed with gunshot victims when a distraught father goes on a murderous spree. Kovac places Abby's application for medical school without telling her.