Season 3
Ryan, Marissa, Seth and Summer are about to begin their senior year at Harbor High. But while everyone else celebrates the last days of summer, a dark cloud hangs over the foursome. Trey, Ryan's brother, still clings to life two months after the shooting and the cops want to know who really shot him. Meanwhile, Julie Cooper and Jimmy are determined to protect Marissa at whatever cost. And while Sandy, Seth and Ryan try to fend for themselves at home, Kirsten, still recovering in her plush rehab by the sea, forms a friendship with fellow recovering alcoholic Charlotte, who like all things in the O.C. may not be everything she appears to be.
Episodes
1 The Aftermath Sep 8, 2005 
2 The Shape of Things to Come Sep 15, 2005 
3 The End of Innocence Sep 22, 2005 
4 The Last Waltz Sep 29, 2005 
5 The Perfect Storm Nov 3, 2005 
6 The Swells Nov 10, 2005 
7 The Anger Management Nov 17, 2005 
8 The Game Plan Dec 1, 2005 
9 The Disconnect Dec 8, 2005 
10 The Chrismukkah Bar-Mitzvahkkah Dec 15, 2005 
11 The Safe Harbor Jan 12, 2006 
12 The Sister Act Jan 19, 2006 
13 The Pot Stirrer Jan 26, 2006 
14 The Cliffhanger Feb 2, 2006 
15 The Heavy Lifting Feb 9, 2006 
16 The Road Warrior Mar 9, 2006 
17 The Journey Mar 16, 2006 
18 The Undertow Mar 23, 2006 
19 The Secrets and Lies Mar 30, 2006 
20 The Day After Tomorrow Apr 6, 2006 
21 The Dawn Patrol Apr 13, 2006 
22 The College Try Apr 20, 2006 
23 The Party Favor Apr 27, 2006 
24 The Man of the Year May 4, 2006 
25 The Graduates May 18, 2006