A deadly earthquake strikes Beverly Hills. Naomi tries to cope with her rape, and the Wilsons struggle with Harry's absence. Teddy and Silver are happier than ever, but Teddy suffers an injury that threatens to end his tennis career. Annie and Liam make an important decision about their relationship.
Naomi finds out she can now access the money in her trust fund, so she decides to throw a giant birthday party where The Honey Brothers perform a few songs. Dixon, Navid and Liam decide to take Oscar out for a night on the town, but their party ends when Ivy finds a Facebook photo of Dixon doing a body shot off a girl.
Naomi suffers from constant flashbacks to her rape and turns to sleeping pills to get a good night's sleep. in order to sleep through the night. Silver accepts an invitation from Mr. Cannon to watch his new documentary at his apartment, and he secretly slips something in her drink. After a night of drinking, Teddy wakes up and realizes that he hooked up with someone.
Silver hosts a cancer awareness charity event in honor of her mom. Liam, Navid and Teddy are auctioned off in a bachelor auction. Teddy also insults a theater student. Annie and Ade figure out what happened between Naomi and Mr Cannon while Dixon and Ivy spend the night together.
Silver, Naomi and Adrianna craft a plan to seduce Mr. Cannon and prove that he raped Naomi, but they underestimate his ability to control the situation. Teddy and Ian are forced to do manual labor as punishment for fighting. Dixon fears for his life and pushes Ivy away, leading her straight into the arms of Oscar. A pregnant Jen seeks to hire a new assistant and Debbie applies for the job.
New parents Jen and Ryan find out about Naomi's rape and Jen decides to take matters into her own hands. Ryan encourages Naomi to come forward even though his own job may be in jeopardy. Victor arranges a photo shoot for Adrianna and instructs her to go topless, while Navid and Silver watch in shock. Annie discovers that Charlie has a dark and disturbing side when she sneaks in to observe a staged reading of his play.
Ryan encourages Naomi to press charges against Mr. Cannon and prepares himself for the consequences. Oscar decides to set his sights on Naomi and unknowingly helps her with the case against Mr. Cannon. Ivy decides to tell Dixon she slept with Oscar. Navid and Silver attend the Achievement Awards dinner while Annie, Teddy, Liam and Ian attend The Undies, an anti-achievement ceremony at the Beach Club.
Annie and Dixon go visit their father but are shocked at who answers the door. Meanwhile, Jen begins to think she's a bad mother and makes an important decision with Ryan; Naomi and Ivy join forces to take down Oscar; Navid discovers something about his father and asks Silver for help in proving it and Adrianna un-invites Navid to her premiere party in favor of Joe Jonas to boost her image under the recommendation of her manager.
Teddy begins to feel more comfortable in his own skin and decides to visit a bar in West Hollywood where he soon realizes he forgot his wallet and is forced to turn to Ian for help; Navid feels guilty for turning his father in to the authorities; Charlie's friends catch Annie wearing sexy lingerie.
Naomi jumps back into the dating world when she notices one of Ivy's hot surfer friends, Zach, and tries to impress him by pretending to know how to work a surfboard. Ivy remains upset by her mother's actions with Oscar and decides to rebuild her relationship with her father. Dixon and Annie decide to help Debbie get back into the dating world by signing her up for online dating, but while on her first date, she and Ryan sneak away for some one-on-one time at the Beach Club.
Adrianna rents a mansion and decides to throw a housewarming party complete with an ice skating rink and elves. All is great in Adrianna's world until Victor decides to reveal Adrianna's secrets to the media. Annie decides to skip the party so she can take care of Liam, which leads to the two of them rekindling their old romance in Dixon's bed.
Naomi is taken hostage in her own home by an out-of-control Mr. Cannon who also lures Silver into the situation. Annie and Dixon's cousin Emily from Kansas comes to town for an extended visit, but Emily immediately gets on Annie's nerves.
Naomi, Adrianna, Silver and Annie decide to have a girls' weekend and head to a yoga retreat in Ojai. Annie attempts to be a good cousin and invites Emily along for the weekend but confronts her about being a downer on the trip. Emily purposefully neglects to wake Annie up for a sweat lodge session and uses the opportunity to turn the girls against Annie.
Everything changes for Navid when he learns how Adrianna used the baby she gave up for adoption. Adrianna leans on Silver for support and makes a shocking discovery. Annie gets the opportunity to audition for a play and Emily comes up with a plan to sabotage her.
Navid and Dixon convince a music producer to shoot a music video at Shirazi Studios. Adrianna's suspicions are confirmed, and she tells Silver about her plot for revenge. Emily distracts Annie and tries to get close to Liam, but her plan backfires.
Back to her old tricks, Emily messes with Annie's internship at the playhouse - and with Annie's boyfriend. Silver convinces Navid to sign the release for Adrianna's reality show to help distract her and throw her off the track. Naomi bottles up her feeling for Max. After watching footage from her birthday party, Adrianna makes a stunning realization.
Dixon and Navid formalize their partnership, and a chance meeting with Snoop Dogg could mean good news for Shirazi Studios. Naomi tries to impress Max by dressing up in an Avatar costume, but doesn't quite get the reaction she was hoping for. After learning the truth about Navid, Adrianna vows to get revenge.
When the group decide to take a vacation to Mexico for a much needed break, chaos ensues. Naomi brings her crush Max along, under the guise that she needs extra tutoring. Teddy encounters a former crush with surprising results, while Annie drags Liam around the city, determined to embrace the culture.
Naomi, sick of hiding her relationship with Max and afraid he might be cheating on her, follows him to an academic decathlon event, to confront him. Silver begins to behave erratically, which worries Navid and secretly pleases Adrianna.
Annie convinces Marla to attend a Hollywood movie premiere of one of Marla's old films, while Ryan has an unexpected visitor and Teddy catches Marco in a lie and begins to wonder if he is being cheated on.
As the gang gears up for prom, Dixon and Annie find out some devastating news about their futures, while Ivy learns that Raj's health has taken a turn for the worse. While Silver is in the hospital, Adrianna tries to rekindle her romance with Navid. Meanwhile, Naomi and Max's relationship is tested to the limit.
As graduation looms, Naomi makes a decision that could prevent her from graduating with her class. Liam tells Annie that he doesn't want to go to college and Ryan asks Debbie to move to Paris with him. Meanwhile, an impromptu wedding takes place and Adrianna is shunned from the group when they find out her scheme to get revenge on Silver.