Season 3
The season followed the continuation of the surgical residency of five young interns, as they experience the demands of the competitive field of medicine, which becomes defining in their personal evolution. Although set in fictional Seattle Grace Hospital, located in Seattle, Washington, filming primarily occurred in Los Angeles, California. Whereas the first season mainly focused on the impact the surgical field has on the main characters, and the second one provided a detailed perspective on the physicians' private lives, the third season deals with the tough challenges brought by the last phase of the surgeons' internship, combining the professional motif emphasized in the first season, with the complex personal background used in the second. Through the season, several new storylines are introduced, including the arrival of Dane's character, Dr. Mark Sloan, conceived and introduced as an antagonizing presence.
Episodes
1 Time Has Come Today Sep 21, 2006 
2 I Am a Tree Sep 28, 2006 
3 Sometimes a Fantasy Oct 5, 2006 
4 What I Am Oct 12, 2006 
5 Oh, the Guilt Oct 19, 2006 
6 Let the Angels Commit Nov 2, 2006 
7 Where the Boys Are Nov 9, 2006 
8 Staring at the Sun Nov 16, 2006 
9 From a Whisper to a Scream Nov 23, 2006 
10 Don't Stand So Close to Me Nov 30, 2006 
11 Six Days (1) Jan 11, 2007 
12 Six Days (2) Jan 18, 2007 
13 Great Expectations Jan 25, 2007 
14 Wishin' and Hopin' Feb 1, 2007 
15 Walk on Water Feb 8, 2007 
16 Drowning on Dry Land Feb 15, 2007 
17 Some Kind of Miracle Feb 22, 2007 
18 Scars and Souvenirs Mar 15, 2007 
19 My Favorite Mistake Mar 22, 2007 
20 Time After Time Apr 19, 2007 
21 Desire Apr 26, 2007 
22 The Other Side of This Life May 3, 2007 
24 Testing 1-2-3 May 10, 2007 
25 Didn't We Almost Have It All? May 17, 2007