The O.C. - The Avengers

High school seems like a distant memory to the young graduates of Harbor School--in the affluent ocean-side community of Newport Beach in Orange County, California--particularly because they have been thrust into adulthood after the death of their beloved friend Marissa Cooper.The Cohens struggle to keep their ward, Ryan Atwood (series star BEN McKENZIE), focused on the future, fighting the forces that threaten to pull him back into his old life. Sandy Cohen (series star PETER GALLAGHER) returns to the public defender’s office, and he and his wife, Kirsten (series star KELLY ROWAN), are the happiest they have ever been with each other.Yet the Cohens must still rise to the challenge of keeping their family together while they reach out to another troubled teen, Marissa's little sister, Kaitlin (series star WILLA HOLLAND), who has returned to Orange County, poised to become the number one troublemaker at Harbor School. Over the summer, Kaitlin befriended the departed Luke Ward's younger twin brothers, Eric (recurring guest star COREY PRICE) and Brad (recurring guest star WAYNE DALGLISH), who worship her.Summer Roberts (series star RACHEL BILSON) attends Brown University in Rhode Island, where she has reinvented herself as a left-leaning, tree-hugging activist under the sway of a classmate named Che (recurring guest star CHRIS PRATT - "Everwood"). Out are Summer's celebrity gossip magazines, and in are her "chicken lovers of the world unite!" flyers.Meanwhile, Seth Cohen (series star ADAM BRODY), lonely in Orange County and working at a local comic book store, turns to watching golf with Summer's father, Dr. Neil Roberts (recurring guest star MICHAEL NOURI), and hanging out with the local socialites for stimulation.In the fourth season premiere, everyone struggles to adjust to life without Marissa. Dealing with her death in the only way he knows how, Ryan has moved out of the Cohen house. When Ryan misses a special dinner, Seth finds him in the wrong pa...

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