Season 4
Season four
No. of episodes 22
Original network NBC
Original run September 25, 1997 – May 14, 1998
DVD release December 20, 2005
Season chronology
Season 3
Season 5

The fourth season of the medical drama series ER which originally aired from NBC on September 25, 1997 and concluded on May 14, 1998. The season consists of 22 episodes. It was released on Region 1 DVD on December 20, 2005.



Main article: Season 4 crew

Cast and characters

Main article: Season 4 characters
See also: Season 4 cast
Actor/actress Character Role
Anthony Edwards Dr. Mark Greene Emergency Medicine Attending
George Clooney Dr. Doug Ross Emergency Pediatric Fellow
Noah Wyle Dr. John Carter Emergency Medicine Intern
Julianna Margulies Nurse Carol Hathaway ER Nurse
Gloria Reuben Jeanie Boulet Physician Assistant
Laura Innes Dr. Kerry Weaver Acting Chief of Emergency Medicine
Maria Bello Dr. Anna Del Amico Emergency Pediatric Resident
Alex Kingston Dr. Elizabeth Corday Surgical Lecturer in Trauma and Orthopaedics
Eriq La Salle Dr. Peter Benton Surgical Resident (Year 5)

Plot synopsis

Season four opens with the live episode "Ambush" performed twice (once for the East Coast and once for the West Coast).

Dr. Morgenstern, the head of the ER, has a heart attack, threatening his life. Weaver agrees to temporarily step in until he recovers. Unfortunately, when Morgenstern does come back, he cannot perform surgery like he used to do because he now knows what it is like to be a patient.

After a surgical accident that takes a man's life, Morgenstern decides to permanently step down as head of the ER and leaves the hospital.

Two new physicians join the ER: Dr. Anna Del Amico and a new British surgeon Dr. Elizabeth Corday.

Corday came to America under the fellowship of Dr. Robert "Rocket" Romano (portrayed by Paul McCrane), but their relationship sours towards the end of the season. After she rejects Romano when he asks her out, he decides not to renew her fellowship. She is forced to choose whether she moves back to England or stays in America as an intern.

Meanwhile, as Greene copes with his beating from last season, he and Ross take a vacation to California to bury Ross' dad.

While there, Greene visits his own parents, where he finds out that his mother is sick, and his relationship with his dad is estranged, at best. Back in Chicago, he begins to date new ER desk clerk Cynthia Hooper (portrayed by Mariska Hargitay from Law & Order: SVU).

The relationship is purely physical and when Greene has to visit his parents again later in the season, Cynthia comes along, only to realize that Greene does not love her. After the awkward breakup, Cynthia leaves, but Greene stays to better take care of his ailing mother and begin to mend his relationship with his father.

Ross and Hathaway get more serious when Ross surprises Hathaway and proposes to her in front of the ER staff which she accepts. She later has commitment issues when she kisses a vulnerable paramedic. She tells Ross and he reacts angrily. After a short time, Ross forgives her and tells her he will wait until she is ready to be married.

In addition, Hathaway is able to open a free clinic in the ER with the help of Carter's grandmother. Ross vies for a pediatric attending position in the ER.

A lonely Corday starts a relationship with Benton which causes friction with his family because she is white.

Weaver attends a Synergix seminar to see how to better manage the ER. She begins to date a Synergix representative, Ellis West, who advises her to fire a physician's assistant, which happens to be Jeanie Boulet.

Jeanie fights for her job, claiming that she was fired because of her HIV status. Facing a lawsuit, Chief of Staff Donald Anspaugh decides to hire her back. Weaver begins to see Synergix's dark side and breaks up with West because she feels he is using her, effectively cutting off all ties with Synergix.

Jeanie's ex-husband/current partner Al is forced to reveal his HIV status. This gets him fired and forces him to look to Atlanta for a job, and he asks Jeanie to join him. Jeanie refuses, and Al leaves her. Later in the season, Jeanie cares for Anspaugh's dying son, because she is the only person able to get through to him. After he dies, Anspaugh feels much gratitude and remorse towards Jeanie, given her prior termination.

Carter pretends to be of humble origins in order to impress Anna, which fails when she finds out he actually comes from a wealthy family.

Despite this, the two still become good friends and she helps Carter help his cousin Chase detoxify from a heroin addiction. She had experience in the subject, considering her ex-boyfriend went through a similar experience. Unfortunately, their efforts were in vain because Chase started using again, eventually crippling him for life.

At the end of the season, Anna's ex-boyfriend, Max Rocher comes to the hospital to see if the ER is in need of a pediatrics attending. Anna is still in love with him and faces a decision about her future in the ER.


Main article: Episodes
Season # Series # Title Writer Director Original airdate
1 70 Ambush Carol Flint Thomas Schlamme September 25, 1997
2 71 Something New Lydia Woodward Christopher Chulack October 2, 1997
3 72 Friendly Fire Walon Green Felix Enriquez Alcala October 9, 1997
4 73 When The Bough Breaks Jack Orman Richard Thorpe October 16, 1997
5 74 Good Touch, Bad Touch David Mills Jonathan Kaplan October 30, 1997
6 75 Ground Zero Samantha Howard Corbin Darnell Martin November 6, 1997
7 76 Fathers and Sons John Wells Christopher Chulack November 13, 1997
8 77 Freak Show Neal Baer Dean Parisot November 20, 1997
9 78 Obstruction of Justice Lance Gentile Richard Thorpe December 11, 1997
10 79 Do You See What I See? Linda Gase Sarah Pia Anderson December 18, 1997
11 80 Think Warm Thoughts David Mills Charles Haid January 8, 1998
12 81 Sharp Relief Samantha Howard Corbin Christopher Chulack January 15, 1998
13 82 Carter's Choice John Wells John Wells January 29, 1998
14 83 Family Practice Carol Flint Charles Haid February 5, 1998
15 84 Exodus Walon Green and Joe Sachs Christopher Chulack February 26, 1998
16 85 My Brother's Keeper Jack Orman Jacque Toberan March 5, 1998
17 86 A Bloody Mess Linda Gase Richard Thorpe April 9, 1998
18 87 Gut Reaction Neal Baer TR Babu Subramaniam April 16, 1998
19 88 Shades of Grey Samantha Howard Corbin Lance Gentile April 23, 1998
20 89 Of Past Regret and Future Fear Jack Orman Anthony Edwards April 30, 1998
21 90 Suffer the Little Children Walon Green Christopher Misiano May 7, 1998
22 91 A Hole in the Heart Lydia Woodward Lesli Linka Glatter May 14, 1998
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