he second season of The O.C. commenced airing in the United States on November 5, 2004, concluded on May 19, 2005, and consisted of 24 episodes. It aired Thursdays at 8:00 p.m. ET in the US on FOX, a terrestrial television network. In addition to the regular 24 episodes, two special episodes aired before the season premiere. "The O.C.: Obsess Completely" documented the show's impact on popular culture, and the following week "Welcome to The O.C.: A Day in the Life" provided a behind-the-scenes look at the show.

Continuing the stories about the characters living in Newport Beach, California, the second season would be "no longer about Ryan's past; now it's going to be about Ryan's future", said Josh Schwartz, The O.C.'s creator. Schwartz went on to add that this season would "slow down the storytelling a little bit and evolve the characters". The focus of the series was on the romantic developments between Ryan and Marissa, and Seth and Summer, while Sandy and Kirsten face choices that could ruin their 20-year marriage, Julie's past comes back to haunt her, and Ryan's ex-con brother Trey gives living in Newport a try. The season was released on DVD as a seven-disc boxed set under the title The O.C.: The Complete Second Season on August 23, 2005 by Warner Bros. Home Video. On September 7, 2008 the season became available to purchase for registered users of the US iTunes Store. In the United Kingdom the season premiered January 11, 2005 on Channel 4. In Canada the season aired on CTV Television Network and in Australia it was broadcast by Network Ten.

Overview from themoviedb.org