Watch ER Season 6 Full Episodes

Kovac and Benton are rushed to the site of a school shooting, where they disagree over who is more critical: the severely injured gunman or one of...

Carol resuscitates a terminal cancer DNR to say goodbye to her family, and realizes that life is too short. She runs out of the hospital after...

Carter buries himself in his work to take his mind of his troubles, coming under fire from Weaver and Kovac when he defies ER policy and performs an...

Greene takes the day off to care for his dying father but ends up in the ER anyway where the older Greene is diagnosed with pneumonia. Carter is...

Greene deals with his father's worsening condition and his desire to be placed in a hospice. Carter almost loses it as he treats a construction...

Mark and Elizabeth squabble after he disagrees with her treatment of his father. Carter gets in trouble when a patient of his that he had discharged...

Greene takes charge of a chaotic shift while dealing with his father's refusal of treatment for his lung cancer and Corday's insistence on harvesting...

Corday discovers that her mother and David Greene spent the night together. Greene later discovers that his father has lung cancer. Lucy's mother...

Weaver discovers Carter and Lucy. As police begin to arrive, Benton rushes between the two, being the only surgical resident on duty. Greene and...

The staff prepares for Valentine's Day. Romano brings his dog into the OR for surgery. The rivalry between Chen and Malucci hurts a patient of...

Third year med student (and part-time OB nurse) Abby Lockhart begins her ER rotation. A flu bug sweeps through the ER. Carter tries to help a kid...

Lucy struggles to get patient Valerie in for surgery when an infection threatens her heart transplant. Carter and Chen disagree over the treatment...

Greene flies to San Diego when his father runs away from his retirement home. Former med student Deb Chen returns to the ER, now known as Jing-Mei...

Lucy desperately tries to find a way for a young woman to receive a new heart in order to stay alive, going as far as going to Romano's house in the...

Carol goes into labor on the L. With the help of Luka, she makes it into the ER and delivers one twin, Tess, there. She is then moved to the OB and...

Greene searches for his father, who is supposed to have arrived from San Diego earlier in the day. Corday crosses ethical lines to save the life of...

Benton struggles with the idea of taking a DNA test to determine whether or not Reese is actually his son. As the signs continue to pile up, Kerry...

An explosion in a high school science lab brings many patients to the ER. Lawrence's memory continues to go downhill and more staff becomes...

Lawrence exhibits signs of forgetfulness, which Lucy catches, while treating a teenager who tried to hang himself. A negative article about the...

Mark clashes with new attending physician Gabriel Lawrence. Lucy and Luka try to convince a woman that her husband is dangerous. Carter tries to be...

Returning from his mother's funeral, Mark clashes with Kerry over the treatment of a teenager who rescinded her DNR. A new second year resident that...

Multiple traumas come to the ER after a truck crashes into a coffee bar, narrowly missing a very pregnant Carol. Rumors fly around the ER about...