How to watch The O.C.: Season 4 (2006) on Netflix Italy!

Taken in by affluent Sandy and Kirsten Cohen, troubled teen Ryan befriends their geeky son, Seth, and spots the lovely girl next door, Marissa.

Seth and Marissa convince Ryan to hide in one of Kirsten's vacant model homes instead of running away, but a fight with Luke sets the house ablaze.

Sandy gets Ryan out of juvenile detention after the house fire, and Ryan's boozy mother visits the Cohens and reveals her true colors.

Drama dominates the Cotillion Ball as Luke and Ryan spar over Marissa, Seth vacillates between Summer and Anna, and Jimmy's money woes are exposed.

Ryan gets a restaurant job and meets Donnie, whose party-hardy ways get the crew into trouble. Meanwhile, Julie demands a divorce from Jimmy.

Kirsten's domineering father comes for a visit, Marissa ponders giving Luke another chance, and Seth wonders if Summer's feelings for him are genuine.

Ryan and the gang plan a road trip to Tijuana, but Luke wants to crash their party. Meanwhile, Jimmy hatches a dubious plan to escape his troubles.

Julie blames Marissa's drug overdose on Ryan, Kirsten is unhappy about Sandy's new job environment, and Jimmy and Julie's marriage breaks apart.

Marissa faces an ultimatum to choose between Ryan and Luke, Sandy takes a case against Kirsten's father, and school is rough going for Seth and Ryan.

Ryan and Marissa plan their first official date, Seth juggles his feelings for both Summer and Anna, and Sandy faces temptation at work with Rachel.

Ryan visits his brother in prison at Thanksgiving, but the trip stirs up bad feelings. Meanwhile, Seth gets caught two-timing Summer and Anna.

Seth tries to make up to Summer and Anna, Sandy advises Jimmy on his financial troubles, and Ryan and Luke stumble upon a secret about Luke's father.

Seth innovates an interfaith "Chrismukkah" holiday, Marissa acts out over her parents' separation, and Summer and Anna give Seth an ultimatum.

Sandy and Kirsten wind up at a swinger's party, Hailey throws a New Year's Eve bash that gets out of hand, and Oliver makes advances on Marissa.

Ryan catches Oliver with a drug dealer, Seth and Anna ponder telling Summer about their romance, and Hailey realizes the Cohens don't want her around.

On a trip to Palm Springs, Marissa freezes Ryan out while Oliver reveals his true colors. Meanwhile, Summer deals with Seth and Anna's relationship.

Jimmy and Sandy plan to open a restaurant, Seth becomes jealous of Summer's new boyfriend, and Ryan tries to expose Oliver's true intentions.

Ryan's and Luke's warnings about Oliver go unheeded until things turn violent with Marissa, and Anna becomes wary of Summer's interference.

Marissa reconsiders her feelings for Ryan when an old flame reenters his life, and Seth and Summer take their relationship to new heights.

Luke and Julie begin a secret affair, Seth and Summer admit their true feelings for each other, and Theresa wants to rekindle a romance with Ryan.

Theresa's boyfriend causes a stir when he comes looking for her. Meanwhile, Seth feels remorse over his treatment of Anna when she leaves for home.

Ryan and Seth urge Luke to end his affair with Julie before Marissa finds out, and the gang discovers Hailey working as a stripper in Los Angeles.

Sandy's mother comes to visit with her insufferable attitude and some devastating news, and Ryan goes in search of Marissa after she goes missing.

Caleb asks Julie to marry him, Jimmy's shady past jeopardizes the restaurant's future, and Luke suffers through a terrible car accident.

Kirsten and Marissa throw Julie a bridal shower but invite Julie's alienated sister, and Theresa turns to Sandy for some legal advice.

In Las Vegas for a bachelor party, Caleb divulges his true purpose for marrying Julie. Meanwhile, a bachelorette party brings surprising revelations.

Ryan and Theresa consider moving back to Chino together, Marissa moves in with Julie and Caleb, and a despondent Seth sails off in his yacht.

Sandy and Kirsten try to convince Seth to come home. Conflict with Julie drives Marissa to start drinking again. Caleb grows increasingly paranoid.

Back in Newport, Ryan and Seth plan to reconnect with Marissa and Summer, but things have changed. Sandy tries to help Caleb with his legal troubles.

While Seth tries to mend his relationship with Summer, sparks fly between Ryan and his new lab partner. Caleb's arrest shakes up the Newport Group.

Seth and Ryan's double date with Lindsay and Alex takes an awkward turn. Julie needs Kirsten's help at work, and Sandy gets bad news.

Julie learns about Marissa's relationship with D.J. and seeks Jimmy's advice when they co-chair the winter dance. Seth tries to get closer to Alex.

With Caleb facing prison time, Sandy urges him to come clean about his relationship with Renee. Things heat up between Jimmy and Julie.

Ryan and Lindsay try to figure out what Caleb's confession means for their relationship. Seth adopts a new image, hoping to get Alex's attention.

The Cohens' 20th anniversary is filled with drama when Sandy forgets the date, Ryan and Lindsay get caught in the act and Seth tries to sneak out.

Seth gets a big surprise when Alex's ex comes to town. Ryan confronts Marissa after she and Summer spend a wild night out with Lindsay.

Seth and Zach work on a comic book, Ryan encourages Lindsay to get to know Caleb, and an old acquaintance asks Sandy for a surprising favor.

Kirsten tries to make peace between Ryan and Caleb, but a dinner together ends in disaster. Meanwhile, Sandy keeps Kirsten in the dark about Rebecca.

Sandy tries to make it up to Kirsten when she finds out about Rebecca. Seth, Zach and Summer head to San Diego to pitch their comic book.

Tension continues to brew between Sandy and Kirsten. Seth broods about Summer and Zach, while Marissa proves she has serious feelings for Alex.

Lindsay agrees to take the DNA test. Marissa tells Julie about Alex and moves out of the house. Seth tries to stop Summer from going to Italy.

Ryan, Seth, Summer and Marissa head to the mall, hoping to leave relationship drama behind. Kirsten connects with Newport Living's new editor.

Alex gets jealous when Marissa starts spending more time with Ryan. Seth pines for the good old days. Julie needs Sandy's help dealing with Lance.

Ryan reconnects with his recently paroled brother, Trey. Zach returns from Italy with news, and Julie confides in Kirsten about her past.

Trey volunteers to help at Sandy's charity auction, but trouble arises when a big-ticket item goes missing. Kirsten invites Marissa to move in.

Marissa and Ryan throw an out-of-control 21st birthday party for Trey. Kirsten's jealousy bubbles up when Sandy plays matchmaker for Carter.

Ryan and Marissa fight to keep Trey out of jail. Summer is fed up with Seth, and Kirsten flirts with disaster on a wine-tasting outing with Carter.

When his mother announces she's getting married, Sandy heads to Miami with Seth and Ryan in tow. Back home, Marissa gets into trouble with Trey.

Sandy confronts Kirsten about her drinking, and Ryan is concerned about Marissa's mental health. Summer finally makes a decision about Seth and Zach.

Kirsten promises to clean up her act. Seth and Zach get big news about their graphic novel, and Ryan learns more about Trey and Marissa.

Jimmy Cooper comes back into town to support Julie and Marissa. Sandy and the rest of the family give Kirsten an ultimatum. Ryan confronts Trey.

With Trey in a coma, Ryan and Marissa deal with the consequences of his shooting. In rehab, a shaky Kirsten befriends a fellow alcoholic.

Harbor's dean decides Ryan and Marissa's fate. Kirsten takes a detour after leaving rehab. Summer protects Marissa's role as social chair.

Dean Hess forces Summer and Seth to join the drama club. Ryan and Marissa's parents want them to end their romance. Caleb's will shocks his family.

While Marissa struggles to fit in at her new school, Ryan worries about their relationship. Julie and Kirsten get some shocking news.

Sandy, Seth and Summer plot to get Ryan back into Harbor. Charlotte regroups and comes up with a new scheme involving Julie.

Marissa's friendship with Johnny evolves. Sandy reconsiders selling the Newport Group. Charlotte ropes Julie and Kirsten into a charity event.

Marissa tries to keep Volchok away from Ryan. Taylor comes between Seth and Summer. Sandy realizes he must make staff cutbacks.

Ryan, Seth and Summer start the college application process. After Julie is forced to move into a trailer, Kirsten makes her a business proposition.

Ryan interns for Sandy at the Newport Group. Johnny makes a confession to Marissa. Julie and Kirsten land a client. Summer and Seth apply to Brown.

Seth hatches a plan to help Johnny raise money for his knee surgery. The holidays lead Summer to question Neil about why her mother left.

Ryan, Seth and Summer try to bring Marissa back to Harbor. Neil and Julie prepare to reveal a secret. Sandy is faced with an ethical dilemma.

Marissa's sister Kaitlin returns home from boarding school. Taylor's mother Veronica hires Kirsten and Julie's dating service to set her up with Neil.

Kaitlin's upcoming birthday causes a problem for Marissa. Sandy tries to woo a big client. Seth and Summer prepare for Ivy League interviews.

Ryan confronts Marissa about Johnny. Summer learns about Seth's new vice. Julie and Kirsten's service goes too far.

A tragedy impacts the community. Ryan doubts his feelings for Marissa. Kaitlin returns to school. Julie and Kirsten throw a Valentine's Day party.

Marissa answers questions from the police while Ryan and Sadie track down Johnny's father. Summer wants Julie to find a match for her dad.

Sandy works on a surprise for Ryan's birthday, but Ryan is unenthused about the milestone. Neil and Julie decide to tell Marissa and Summer the truth.

An old enemy from Ryan's past reappears, jeopardizing his romance with Sadie. Seth and Summer have relationship troubles of their own.

Sandy has a work crisis. Summer worries about Marissa's behavior. Ryan and Sadie reach a critical juncture. Kirsten and Seth get some quality time.

Ryan and Sadie plan their post-high school lives. Marissa and Summer mend fences. College acceptance letters begin to arrive.

Ryan visits his mother but hesitates to invite her to his graduation. Sandy is consumed by work. Summer and Taylor try to learn Seth's secret.

Seth makes a last-minute effort to get into Brown. Ryan and Marissa travel to orientation at Berkeley. Kirsten and Sandy's feud boils over in public.

Marissa's date creates tension at the prom. Seth continues pursuing Summer. Kirsten deals with a relapse. Sandy gets more bad news at work.

Volchok asks Ryan for a favor. Marissa helps Kaitlin with a school crisis. Sandy prepares to accept an award despite issues at work.

Marissa, Seth, Summer and Ryan graduate, while Kaitlin returns to Newport. Marissa reconsiders her plans for the future. Seth comes clean to Sandy.