ER: Season 12
Season 12 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of ER Season 11.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 12 Progress Shield
Cañon City
Sep 22, 2005 · 44 min
Sam and Luka go on the search for her runaway son, Alex. Meanwhile, Pratt and Lewis guide Abby, Neela and Ray, who have become R2's, on how to teach the new interns.
Nobody's Baby
Sep 29, 2005 · 44 min
Much to Ray's dislike, a surrogate mother in labor doesn't want to have a C-section and endangers the life of the baby. Meanwhile, Sam tells Luka she and Alex are moving out. Pratt
Man with No Name
Oct 6, 2005 · 44 min
Luka has a very bad day: New nurse manager Eve Peyton notices he doesn't want to work with Sam and tells him so. At the end of the day he's drunk and Abby takes him home.
Blame it on the Rain
Oct 13, 2005 · 44 min
The rainy night brings in diverse patients including a mother involved in a car accident with her baby, a man with a satisfaction facilitator, and a comatose patient who suddenly w
Wake Up
Oct 20, 2005 · 44 min
A new attending, Dr. Victor Clemente, comes aboard and quickly makes a stir on the ER. Abby's breast cancer patient convinces her to take a long awaited test. Luka befriends a youn
Dream House
Nov 3, 2005 · 44 min
Pratt's half-brother tries to get him to make ends meet with his estranged father. Clemente treats an infant chimpanzee and involves Abby and Neela on the secret case. Eve promotes
The Human Shield
Nov 10, 2005 · 43 min
A kidnaped girl is the victim of police shooting. Abby is stuck in the middle of a disagreement between Luka and Clemente. Neela receives a phone call from Iraq. Later, Luka and Ab
Two Ships
Nov 17, 2005 · 44 min
The ER prepares to take in victims from a plane collision, while Neela and Pratt head out to the crash site where Neela makes heroic efforts. At the end of the day, Neela gets a su
I Do
Dec 1, 2005 · 44 min
Gallant impulsively asks Neela to marry her that exact day, she says I do but soon gets cold feet. Morris stands up to Weaver on a patients course of treatment. Luka, Sam and Cleme
All About Christmas Eve
Dec 8, 2005 · 44 min
Pratt and Weaver try to create a Christmas miracle when they work to save a girl wounded from gunfire. Eve gets into trouble after punching a disruptive patient. Also, Abby has a s
If Not Now
Jan 5, 2006 · 44 min
Neela treats a religious teenage girl who turns out to be pregnant. Abby and Kovac struggle to figure out what to do with her unexpected pregnancy.
Split Decisions
Jan 12, 2006 · 44 min
Ray helps an old friend escape from her abusive father. Dubenko volunteers in the ER but can't seem to handle a slow day. Abby and Kovac go baby shopping, while Neela gets unexpect
Body and Soul
Feb 2, 2006 · 44 min
Dr. Nate Lennox, a former professor with ALS, is brought in as the progression of his disease is chronicled through his own flashbacks as he is treated by each of the doctors at on
Quintessence of Dust
Feb 9, 2006 · 44 min
An unexpected visitor puts Clemente in the middle of a domestic dispute. Meanwhile, Luka and Abby await test results on their unborn child; Neela struggles with her surgical electi
Darfur
Mar 2, 2006 · 44 min
In the Sudan, Carter and a colleague struggle to save a woman who was raped by a band of militants. Back in the ER, Clemente asks to return to work after the shooting incident, but
Out on a Limb
Mar 16, 2006 · 44 min
When is it time to go out on a limb? Armand Assante guest stars as a patient who makes Sam an offer she might not be able to refuse. Luka must calm Abby’s baby-related fears after
Lost in America
Mar 23, 2006 · 44 min
Abby and Luka desperately try to keep a young woman brought into the ER with stab wounds to the neck alive. As her condition begins to worsen, Clemente steps in and tries a risky p
Strange Bedfellows
Mar 30, 2006 · 44 min
When Luka answers a call for help, he discovers not everyone is pleased. Will he honor his commitment, or ask a colleague to step in for him? Abby and Morris wrestle with the stran
No Place to Hide
Apr 27, 2006 · 44 min
Pratt departs for Africa with attitude to spare but makes his first contact with harsh reality before the plane lands. Abby senses something is not what is seems when she treats a
There Are No Angels Here
May 4, 2006 · 44 min
Pratt gets to work in Darfur alongside Carter and his co-workers, but is troubled by astounding number of people needing care and finds himself making a dangerous journey.
The Gallant Hero and the Tragic Victor
May 11, 2006 · 43 min
Pratt struggles to get a straight story when two abused boys come into the ER with their father. Two U.S. Army officers enter the ER.
21 Guns
May 18, 2006 · 44 min
Chaos reigns in the ER when two prisoners are brought in for treatment, but instead plot a violent escape. Their desperate actions place one doctor in harm's way, and forces one nu