Stanley Tucci begins a multi-episode arc as Dr. Kevin Moretti, an ICU specialist joining the ER team, bent on change. Change comes elsewhere as Luka and Abby adjust to being husband and wife, Pratt tries to be a new man to his lady friend, Morris and Hope take things to the next level, and Ray goes missing. Another change comes when the phone rings at one doctor's home.
Luka postpones his honeymoon, and leaves Abby, Joe and the ER behind to begin a different journey. Meanwhile, it's Moretti's first day as Chief of Emergency Medicine, and everyone feels the effects of his presence, especially Pratt and Morris. Neela learns of Ray's fate, then joins an anti-war rally and finds herself in a dangerous situation while Gates faces a crisis on the home front.

Season Premiere. Moretti's first day is challenging as the ER is inundated with casualties from the peace rally - including Neela. Dubenko faces a crisis in surgery. Abby, Pratt and Morris conspire about how to deal with a shared problem. A new intern arrives unexpectedly, and Gates is reassigned.

Moretti begins to make his presence felt as he implements changes in the way patients are seen. Abby and Dubenko differ on how to proceed when a patient comes in with a bullet in him needed as evidence. Pratt complains to Anspaugh about the new Chief. Neela is released from the hospital. Abby has passport woes, and also struggles with the changes being made by Moretti. Hope prepares for a new mission, one Morris is not too happy about. Gates helps, and is helped by, a child prodigy in the ICU. Sam, Chuny and Dawn go "speed dating."

293 Officer down Stanley Tucci does not appear in this episode
First aired: 10/11/2007
Two wounded police auxiliary officers present challenges in the ER. Neela settles in with Abby as she recovers, while Pratt and Bettina consider their relationship. Gates tries to get a patient on a drug trial, with Dubenko's help. And Morris is in a funk that not even a pretty woman can help.
294 Gravity Stanley Tucci does not appear in this episodeIt's a bad day for Abby, who's missing the still-absent Luka, when Joe is brought to the ER after a fall and is unable to reach Luka. Elsewhere, the day puts family first as Morris cares for a frightened child and Pratt defends his brother. Neela returns to work, and Moretti returns from a conference. A patient's mother gives the ER staffers makeovers in appreciation. The ER gets a new receptionist.
295 Under the influence
First aired: 10/25/2007Morris is missing Hope and having trouble with thoughts of straying. Neela learns some hard lessons of having to be a mentor. Gates is given another chance in the ER. And Abby is struggling without Luka, although there may be news from Croatia...

296 The test
200First aired: 11/1/7

A power outage strikes on an unusually hot day, causing the ER to be flooded with nursing home patients suffering from hyperthermia. Pratt and Morris treat a baby while they wait for their Board results. Moretti's ex-wife pays a visit, leaving him with troubling news. Abby finds herself at a crossroads and ends up at the airport late at night.
Everyone at the ER is happily surprised to see Luka back from Croatia. Great news awaits Neela. Sarah once again needs rescuing by Tony, and patients are causing problems for Morris.






It's time for changes at the ER when Anspaugh makes an unpopular decision. Abby has old demons to fight with, which distance her from friends and family. Even Luka seems to be at a loss to help Abby. Love is in the air when a secret romance blooms between two doctors.
We don't know if Kevin Moretti (Stanley Tucci's character) will be returning to he ER.
Season Finale: When a drunk patient is admitted to the ER, his actions endanger everyone at County. Pratt is still pursuing his dreams of becoming Chief of the ER, and Gates is worried about his future with Sam. Luka unexpectedly runs into Dr. Moretti.
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