1. Pilot

Tough teen Ryan moves in with the Cohens in Orange County.

2. The Model Home

The teens hide in a model home, but a bully causes trouble.

3. The Gamble

Kirsten takes temporary custody of Ryan. His mom gets drunk.

4. The Debut

The teens attend cotillion, where a fight breaks out.

5. The Outsider

Ryan protects Seth twice. Penniless Jimmy has a hard choice.

6. The Girlfriend

After a hot girl seduces Ryan, Marissa has sex with Luke.

7. The Escape

In Tijuana, Marissa learns about the divorce and overdoses.

8. The Rescue

Ryan risks his future to keep Marissa from being sent away.

9. The Heights

Summer is secretly jealous of Seth's relationship with Anna.

10. The Perfect Couple

Marissa and Ryan date. Summer denies her feelings for Seth.

11. The Homecoming

Seth gets in trouble choosing between Summer and Anna.

12. The Secret

Anna and Summer are mad at Seth. Julie has love problems.

13. The Best Chrismukkah Ever

The Cohens celebrate Chrismukkah. Seth juggles two girls.

14. The Countdown

Kirsten's unruly sister hosts a huge New Year's Eve party.

15. The Third Wheel

Disruptive Hailey refuses to leave. Seth chooses Anna.

16. The Links

When Oliver almost overdoses, Marissa stays with him.

17. The Rivals

Seth's jealousy of Summer's new boyfriend gives him doubts.

18. The Truth

Ryan and Luke ally to protect Marissa from Oliver.

19. The Heartbreak

Marissa tries to reconcile with Ryan, but he can't forgive her.

20. The Telenovela

Marissa and Ryan try to start over as friends.

21. The Goodbye Girl

When Anna plans to move away, Seth tries to stop her.

22. The L.A.

When actor Grady Bridges invites Summer and Marissa to his birthday party, the g... More

23. The Nana

Seth fears his grandmother will disapprove of Summer.

24. The Proposal

Marissa is mad at Julie and Luke. Caleb proposes to Julie.

25. The Shower

Julie has a wedding shower. Seth meets Summer's father.

26. The Strip

Seth and Ryan help Caleb celebrate in Las Vegas.

27. The Ties That Bind

Julie's wedding day will long be remembered.