Greene has to face his demons when a board of inquiry investigates the curious death of his serial killer patient. Carter attends his grandfather's funeral in company with Abby.
Just when Dr Carter thinks he's finished for the day, the ER sucks him back in as he is swamped with problematic patients. Benton's former girlfriend dies in an accident.
Malucci flirts with disaster, Carter and Abby become more intimate and Greene's rebellious daughter comes to live with him and Corday. Chen must prove her skills saving a baby.
Kovac is surprised when a beautiful French waitress (guest star Julie Delpy) comes to the ER and asks for him. Susan Lewis returns to County General. A nervous Chen attends a risk management review.
Lewis ministers to a man who is pretending to be comatose for a very good reason, and Dr Carter is shocked to see his sick grandmother brought to the hospital
Abby flirts with a wounded fireman and Greene has to referee between his self-indulgent 14-year-old daughter Rachel and his tense, fed-up wife Corday. Kovac has Nicole hired for the emergency room.
Corday desperately searches for the 'Angel of Death' who has been secretly murdering her elderly patients, and leaving her to take the blame. Benton agrees to have a paternity test.
When a torrential rainstorm pounds Chicago, patients stack up and Weaver speeds to an accident site, while Kovac's new girlfriend gets in trouble and gives him some unexpected news
Benton and his attorney begin a no-holds-barred fight in court to take custody of his son. Greene suspects the worst when his daughter's boyfriend tests positive for drugs.
Benton feels rage and frustration as the custody trial for his son, Reese, reaches a critical stage, while a busy Carter finds romance. Abby spies on Kovac's elusive girlfriend, Nicole.
On her birthday, Abby receives unwelcome surprises, including the news that Kovac plans to leave town for two months to work in Bosnia, and Carter questions his mother's motives when she visits
Lewis clashes with Weaver over the treatment of an injured condemned murderer who wants to die in the emergency room rather than wait for his execution
Greene and Corday are terrified when their helpless baby daughter is brought in suffering from an accidental overdose. Elsewhere, Abby gets a late-night visitor.
With their baby daughter still fighting for her life, Greene and Corday argue after she orders Rachel out of their home. Carter confronts his mother over issues of emotional abandonment.
As Greene's medical problems reappear, Corday moves into a hotel room with the baby. Meanwhile, Chen copes with a comatose teenager who is inexplicably pregnant.
After a bag of sex toys is left in the emergency room, some of the staff engage in inappropriate behaviour, which leads Weaver to order them to attend a sexual harassment seminar
Still living apart, Corday and Greene find it awkward to work together in the emergency room. Weaver treats victims of a raging inferno and Chen is stalked by a madman.
Greene serves his last day in the ER overseeing the arrival of a cocky yet eager new intern. Elsewhere, Abby moves back into her apartment.
Extremely disturbed after receiving a traumatic call for help from her six-year-old niece, Lewis rushes from Chicago to New York to search for the child
Carter reads a letter from the ailing Greene to the emergency room staff, and also tries to coax a drunken Abby to attend an Alcoholics Anonymous meeting with him
As Greene lives his final days, he takes Rachel to his childhood home in Hawaii, along with Corday. But the family arguments escalate as Greene's health deteriorates.
The Chicago residents become fearful of a smallpox epidemic as the ER is placed under quarantine, with all exits guarded, until disease experts from the federal government can arrive