When Carol resuscitates a terminal cancer DNR so that she can say goodbye to her family, she realizes that life is too short; after saying a quick goodbye to Luka and Mark, she runs out of the hospital and hops a plane to Seattle to see Doug. Carter's mental stability has deteriorated to the point where he almosthugs a woman. Chen notices and tells Mark her concern that Carter is bipolar. Weaver goes on the warpath after noticing staff members taking shortcuts in their work, including Abby, who discharges a woman prematurely without running extra tests. Corday offers Malucci a sobering assessment of his performance. Mark prepares to bury his father, and enjoys his daughter's company.
Season 6 Episode 21 of ER resulted in a 0.00 rating in the 18-49 demographic.
 s06e01 - Leave It to Weaver
        s06e01 - Leave It to Weaver
          
        
      
     s06e02 - Last Rites
        s06e02 - Last Rites
          
        
      
     s06e03 - Greene with Envy
        s06e03 - Greene with Envy
          
        
      
     s06e04 - Sins of the Fathers
        s06e04 - Sins of the Fathers
          
        
      
     s06e05 - Truth & Consequences
        s06e05 - Truth & Consequences
          
        
      
     s06e06 - The Peace of Wild Things
        s06e06 - The Peace of Wild Things
          
        
      
     s06e07 - Humpty Dumpty
        s06e07 - Humpty Dumpty
          
        
      
     s06e08 - Great Expectations
        s06e08 - Great Expectations
          
        
      
     s06e09 - How the Finch Stole Christmas
        s06e09 - How the Finch Stole Christmas
          
        
      
     s06e10 - Family Matters
        s06e10 - Family Matters
          
        
      
     s06e11 - The Domino Heart
        s06e11 - The Domino Heart
          
        
      
     s06e12 - Abby Road
        s06e12 - Abby Road
          
        
      
     s06e13 - Be Still My Heart
        s06e13 - Be Still My Heart
          
        
      
     s06e14 - All in the Family
        s06e14 - All in the Family
          
        
      
     s06e15 - Be Patient
        s06e15 - Be Patient
          
        
      
     s06e16 - Under Control
        s06e16 - Under Control
          
        
      
     s06e17 - Viable Options
        s06e17 - Viable Options
          
        
      
     s06e18 - Match Made in Heaven
        s06e18 - Match Made in Heaven
          
        
      
     s06e19 - The Fastest Year
        s06e19 - The Fastest Year
          
        
      
     s06e20 - Loose Ends
        s06e20 - Loose Ends
          
        
      
     s06e21 - Such Sweet Sorrow
        s06e21 - Such Sweet Sorrow
          
        
      
     s06e22 - May Day
        s06e22 - May Day
          
        
      
    ER follows the medical personnel and patients in the emergency room of Chicago's fictional County General Hospital. 
As the doctors and nurses of County's ER confront the daily challenges of a busy urban hospital, including overcrowded waiting rooms, staffing shortages, and the impact of life-and-passing decisions. While they teach the next generation of doctors, the each must tackle demands of their personal lives, at times unsuccessfully. 
The staff is led by Chief of Emergency Medicine Dr. Luka Kovac, a gifted teacher who came to Chicago from Croatia following the tragic passing of his wife and children, but now finds his life on an upswing, and Dr. Kerry Weaver, County's Chief of Staff, a compassionate doctor and uncompromising administrator whose rigid style has isolated her from the medical staff. The ER is staffed by fourth-year resident Dr. Gregory Pratt, who puts patients before procedure, yet fears the responsibility now thrust upon him, feisty nurse Samantha Taggart a tough single mother attempting to balance her difficult personal issues with her demanding professional life, and Scott Grimes as the less than capable Chief Resident Dr. Archie Morris, along with a trio of second year residents: Dr. Abby Lockhart a former ER nurse turned doctor, building a new career and a new life that has taken a sudden and unexpected turn, Dr. Neela Rasgotra recently married and finding her role in the ER after a long period of uncertainty, and Dr. Ray Barnett who must make the choice between his career as a doctor and the rock band in which he plays. Featured this season as recurring characters are John Leguizamo as the innovative, and problematic, Dr. Victor Clemente, Kristen Johnston as demanding Nurse Manager Eve Peyton, and Leland Orser as the ER's highly individual surgical attending, Dr. Lucien Dubenko.