The O.C. was one of the highest-rated dramas on television. Season two features recurring guest stars Olivia Wilde as Alex; Logan Marshall-Greene as Ryan's brother, Trey; and Billy Campbell as Carter, the new editor of Newport Living.
The lives of a group of friends and families have been forever changed by the arrival of an outsider to their affluent oceanside community of Newport Beach in Orange County, California.
Summer is over, and school is in session. Seth and Ryan hope to win back the attention they once had from Summer and Marissa. With opportunity beckoning, Hailey tells Jimmy about her plans to move in order to pursue her unfulfilled fashion ambitions.
At the Bait Shop, the new music club on the pier, Seth gets some help from his attractive and tough-talking manager, Alex, to prove that his friends don't know him as well as they think.
Seth, who is now without a girlfriend, and Sandy, who has just been fired from the law firm, embark on new eras in their lives and vow to take the whole family with them. Ryan and Seth go on an awkward double date to see THE KILLERS perform.
The winter season finally comes to Newport, and Seth, Ryan, Summer and Marissa attend the annual SnO.C. Winter Ball. Julie and Jimmy spend some quality time together as the chairs of the host committee.
The whole gang is invited to Chrismukkah at the Cohens' house, but Seth's favorite holiday is nearly ruined as secrets are revealed that will change the Cohen family forever. Summer, Marissa and Ryan make a plan to save Chrismukkah.
Ryan tries to come to terms with his feelings for Lindsay. Now that she may become a member of the Cohen family, their attraction is rather awkward. Although Sandy knows they're dating, Ryan and Lindsay keep the relationship hidden from Kirsten.
Lindsay (recurring guest star SHANNON LUCIO) and Ryan grapple with their new relationship: Is Lindsay Ryan's step-aunt or his girlfriend? Meanwhile, Summer meets Zach's (recurring guest star MICHAEL CASSIDY) family, and it doesn't go so well.
It's girls against boys when Marissa and Summer decide to plan a girls night out and include Lindsay in the festivities. Ryan, Seth and Zach, have a bonding session over video games and pizza but find it hard to stay away from their female counterparts.
Seth and Zach decide to create a comic book based on their lives in Newport Beach. While browsing through the sketches, Summer wonders why she's been left out. Sandy decides to help an old friend, Professor Max Bloom, find his daughter, Rebecca.
Summer decides to take an active role in creating the comic book, but Seth doesn't know if he can handle spending that much time alone with her. Sandy and Rebecca reminisce about days gone by.
Sandy tries to make amends with Kirsten for keeping Rebecca's return a secret by showering his wife with Valentine's Day gifts. Zach, Summer and Seth drive to San Diego to pitch their comic book idea.
While Rebecca pays her last respects to her father, Kirsten grows impatient with Sandy's long absences from home and decides to visit Rebecca. Alex invites Marissa to hang out with her friends.
It's raining in Newport. Marissa tells Julie that she and Alex are dating and decides she has to get out of Caleb's house. Summer is faced with a big decision as she prepares to go to Italy with Zach.
Although she is trying hard to make her new living situation work, Marissa feels she needs a break and agrees to join Summer, Seth and Ryan at the mall. Julie and Kirsten await the arrival of Carter, the new editor of Newport Living.
Seth is determined to bring back the spirit and fun times of last year and won't stop until his plan is successful. Alex's jealousy is fueled when Marissa enlists an unlikely partner to help her with the school bonfire.
When someone from Ryan's past comes for a visit, he worries that nothing good can come of it. As Marissa and Ryan continue to explore their newfound friendship, Seth and Summer face some unforeseen news.
When Sandy becomes the honorary chairman of the Newport Beach charity yard sale, he solicits help from Trey, who has his first confrontation with the Newpsies. While Sandy auctions off Newport's finest, Kirsten and Carter share a table.
Eager to help Trey and Ryan repair their relationship, Marissa hosts a birthday party for Trey at Caleb's mansion that quickly gets out of control. After surfing with Carter, Sandy suggests introducing him to a woman friend, to Kirsten's chagrin.
After the wild party at Caleb's mansion, Sandy, Seth and Ryan devise a plan to save another Atwood from going to jail. Kirsten and Carter, fulfilling more than their editorial duties, take a trip to the wine country.
Sandy, Seth and Ryan travel to Florida to visit Seth's Nana, Sophie, who is living in Miami Beach. While playing shuffleboard at the coastal retirement community, Seth and Ryan meet Mary-Sue.
Since Carter's departure, Kirsten has been drinking more than just tomato juice for breakfast, and Sandy questions her about it. Marissa's nervousness around Ryan leads him to wonder if something has happened between her and Trey.
Sandy and Caleb confront Kirsten about her behavior. Ryan heads home to Chino, as he looks for the truth about Trey and Marissa. Meanwhile, Summer refuses to let her three-way relationship with Zach and Seth stop her from attending the prom.
In the season finale, Sandy must make a life-changing decision to save his marriage. Seth, Summer, Marissa and Ryan are caught in the crossfire at The Bait Shop. Jimmy Cooper, worried about Marissa and his family, rushes home to Newport Beach.