Greene takes on a new chief resident, Dr Kerry Weaver, for the emergency room, while Carter comes back with a new position, and Benton becomes romantically involved with Jeannie
Lewis and Ross are upset by Harper and Weaver's behaviour, Benton wants Jeannie to tell her husband that they are lovers, and Carter finds a new medical student alluring
Lewis and Weaver's relationship remains combative, Jeanie breaks up with Benton, and Hathaway and Shep kiss for the first time
Carter covers in surgery for an injured Benton, Greene supports Weaver despite her unpopularity, while with Chloe gone, Lewis's work suffers as she tries to care for the baby herself
Carter shines while Benton recuperates, Lewis struggles over what to do with her niece and Greene and Ross quarrel about a young patient who has Aids
Ross angers Bernstein so much that he tells Ross that his fellowship is over at the end of the year, while Jeannie transfers to the ER and Hathaway buys a house
Ross searches for another job and makes a truly heroic rescue under near-impossible circumstances. Meanwhile, Jeanie and Benton feud.
Media hero Ross is honoured with a black-tie banquet and his estranged father contacts him. Meanwhile, Lewis desperately needs help with the care of her niece.
Greene learns that his wife and daughter have been in a car accident while Lewis turns down the chance to address a prestigious conference to care for her niece
Greene's wife, Jennifer, wants to take his daughter away for the Christmas break, while Shep springs a surprise at a carolling party at Hathaway's house
Twenty-two children with diseases of neglect are found in a single apartment. Benton gets some good career news and Greene's marriage woes continue.
Greene's daughter is struggling with the shared parenting, while Ross's problems with his father are starting to affect his work. Benton allows enthusiasm to override his judgement in surgery.
Greene gets very bad news from both his wife and the hospital, while Lewis considers accepting the chief resident position for next year, and Benton is disturbed by Vucelich's study
Vucelich drops Benton from his surgical team when their feud escalates. Ross's father tries to make up with him.
The emergency room is inundated with women giving birth. Meanwhile Benton tries to prove his worth as a surgeon, and Ross visits his estranged father.
An ambulance response to a burning apartment leads to a heroic rescue that has tragic consequences
Dr Lewis's sister Chloe returns, claiming five months of sobriety. Lewis, however, is unwilling to trust her and refuses to turn over baby Susie. Benton makes public one of Ross's mistakes.
On the busiest night ever in the emergency room, Greene witnesses a terrible car accident and solves the mystery of a man's life-threatening reaction to alcohol
Benton finally decides to act on Vucelich and his fraudulent study, Greene finds a new romance, and Lewis's custody battle comes to a head
Both Greene and Ross have romantic adventures with the women in their lives. Meanwhile, Benton learns the effects of his letter about the fraudulent study.
Ross turns to his mother for help when his father skips town with Karen's money, while Hathaway testifies at an investigation for Shep's behaviour. With guest star Piper Laurie.
Carter comforts a critically ill girl who needs a transplant. Meanwhile, Greene and Weaver announce their selections for staff positions next year, and Hathaway quits her job.