Carter is now working as an intern with resident Benton and feeling confident. Jeannie finds out that she is HIV positive, but her ex-lover Benton tests negative.
Jeanie begins treatment for HIV but if she pays for it through her medical insurance, her employer will know. Meanwhile, Greene and Lewis grow closer after a double date.
Greene and Lewis's romance is developing, while new chief of staff Anspaugh institutes a strict regime of rules that manage to upset everyone in the emergency room
Ross finds his reckless personal life leads to tragedy and Carter irritates his boss Benton by continuing to impress Dr Abby Keaton
It's Halloween and a night full of spooky happenings in the ER - a girl injured in an auto accident with her father knows he died even before being told by Carter
Lewis has to fight her fear of flying to attend to victims of an accident. Benton makes a serious mistake which leads to a clash with Keaton.
Benton learns some tough lessons looking after a critically ill baby, and Carter clashes with another intern. Lewis makes a momentous decision which shocks Greene.
Nurse Lydia Wright finally gets to marry policeman Al Grabarsky. Lewis prepares to go to Arizona, but Greene hasn't told her how he feels, so Ross sets him straight.
Greene discovers the truth about Jeanie's HIV status, and Keaton gives Carter some surprising news about her future. Meanwhile Hathaway passes her pre-med physics exam.
Rumours about Jeanie gather pace but she ends them by telling her colleagues about her health status. Meanwhile, Keaton makes a decision which has serious implications for Benton.
Greene jeopardises his career and someone finds out about Carter and Keaton's relationship, while the emergency room loses one of its own
Charlie asks Ross a surprising question, Carter and Benton are at odds and Hathaway feels responsible for a patient's death
The nurses' strike is blamed for a death in the ER, and when Hathaway talks to the press about the incident, she finds herself in serious trouble
Greene juggles dates with three women, Benton needs an appendectomy and Ross has to cope with a teenager's request to die
Hathaway is trapped in a store after a failed robbery attempt and must put her medical knowledge to the ultimate test on both an injured robber and the store owner. Episode guest stars Ewan McGregor.
Ross removes a cystic fibrosis patient from a respirator, and Carter disagrees with a diagnosis, while Hathaway is reinstated
The ER staff receive an ugly lesson in racist presumptions while Benton's most recent ex-girlfriend, Carla, meets up with his former lover Jeanie, who is HIV-positive
Greene competes with Weaver for a teaching position, and Carter gets placed on probation when he gives an order to operate against Anspaugh's initial judgement
Hathaway gets her medical school admission test results, Dr Carter ignores a serious mistake made by another intern, and Greene and Pomerantz take their daughters bowling
Ross becomes a golf fanatic, Carla develops pre-natal problems, and Jeanie and Al rekindle their relationship. Meanwhile, Dr Greene is attacked by a patient's relative.
Greene returns to work somewhat battered, Carter rethinks his career as a surgeon, and Ross surprises Hathaway on her birthday
It's traumatic times for Benton, Carter, Ross and Greene. Fatherhood beckons for Benton, but is the baby healthy? And Greene will not accept that he has problems.