In the season four premiere, gang from Beverly Hills have graduated from high school. Naomi has spent the summer dealing with the shocking news of her pregnancy and quickly discovers she doesn’t have the status at college that she did in high school. Annie receives some unexpected news that keeps her in town, while Liam returns from his summer away ready to commit to Annie. Dixon finds himself without a roommate or a place to live, while an unexpected visitor tests Navid and Silver’s relationship after they move in together. Adrianna comes back to town looking for redemption, which she soon learns will be hard to earn back. Ivy and Raj struggle to deal with Raj’s health getting worse, while Teddy struggles with coming out to his family.

The episode was rated 7.73 from 84 votes.

Naomi has to work with her arch-nemesis Holly to throw a campus costume party, leading to unfortunate consequences. Navid's plan to bring down his Uncle Amal is threatened, while Silver discovers that political candidate Marissa Harris-Young is not who she seems. Meanwhile, Adrianna handcuffs herself to Dixon in an attempt to get him to stay sober and Annie must decide if she wants to give Patrick another chance.

The episode was rated 7.75 from 72 votes.

After making an enemy in sorority president Holly, Naomi finds unusual allies who help her get revenge. Annie, short on money for sorority dues, must figure out a quick way to come up with the cash. Liam and Jane get closer, while Adrianna reveals a secret that causes Liam to look at her in a different light. Ivy becomes increasingly frustrated with her friends and lashes out at their lack of compassion, while Navid must deal with his uncle coming into town and trying to undermine Shirazi Studios.

The episode was rated 7.75 from 72 votes.

Naomi’s sister Jen arrives with her son for a surprise visit. Adrianna and Dixon land a meeting with a major movie producer to discuss music on his next film, but are sabotaged by Vanessa. Meanwhile, Silver gets accepted into New York University and Ivy attracts attention in the underground scene when she switches to a less conventional style of art..

The episode was rated 7.76 from 78 votes.

Naomi embarrasses herself in front of her boss Rachel in an attempt to get over her break-up with Austin. Dixon and Adrianna are booked to perform at a club, where they realize that working together might be a bad idea. Meanwhile, Silver takes her relationship with Greg to the next level and a party Annie throws ends up being a disaster because she is too distracted by Liam's new relationship.

The episode was rated 7.83 from 75 votes.

Annie has to make a decision that could expose her work as an escort when Dixon gets arrested in connection with a fire at a sorority house. Adrianna and Silver attempt to put their past behind them, which results in disaster for Silver's relationship with Greg. Vanessa helps throw a party to re-launch Liam's bar, where the All-American Rejects perform.

The episode was rated 7.85 from 74 votes.

Navid surprises Dixon with some studio time to apologize for messing things up with a music producer, where Dixon feels the pressure to create a hit song. Naomi plots revenge to take down rival Holly and her sorority during the Greek games, which requires Austin's help, much to Naomi's dismay. Silver directs a disastrous commercial for Liam's bar, while Ivy feels torn between her relationship and her friends.

The episode was rated 7.85 from 74 votes.

Naomi is determined to fix the relationship between her boss Rachel and her daughter Holly, which forces Holly and Naomi to work together. Greg asks Silver to move to New York with him and Navid finds out some shocking information about Greg’s daughter. Annie discovers Liam’s girlfriend Vanessa might have been involved with his motorcycle accident.

The episode was rated 7.86 from 69 votes.

Liam gets offered a modeling job after an agent sees the commercial for his bar, while Annie finds herself starting to fall for an unlikely guy. During a charity talent show event to raise money for an experimental cancer treatment for Raj, Naomi is determined to win the contest in order to show up Austin's out-of-town visitor Sally. While working on his music, Dixon pushes his limits and starts spiraling out of control, which forces Adrianna to confront him.

The episode was rated 7.86 from 73 votes.

Naomi is asked by her new party planner boss Rachel to oversee her arch-nemesis Holly’s birthday party, while Annie breaks into Jeremy’s apartment in a desperate attempt to get the proof she needs to keep her inheritance. Navid finds trouble after going with his Uncle Amal to make a deal with a potential buyer, and Liam discovers shocking news about Annie.

The episode was rated 7.87 from 68 votes.

In an effort to re-gain her status, Naomi rushes a popular sorority, where she, along with Annie go through sorority games. Annie finds out a shocking secret about new guy Jeremy that could affect her future. Liam decides to keep the bar he bought on a whim and has a surprise guest from Alaska come into town, while Dixon finds an unlikely roommate in country boy Austin, which could lead to trouble. The search for Navid's sister Leila forces Navid and Silver to enlist in Adrianna for help, much to the dismay of Silver.

The episode was rated 7.89 from 71 votes.

Naomi’s friends worry that she is rushing to get married, so Naomi and P.J. decide to throw a small party so everyone can get to know him. Austin returns to Los Angeles and offers to be Adrianna’s new manager, suggesting she give country music a try. Caleb is concerned Ivy might not be emotionally stable, while Annie finally admits to Caleb that she is falling for him. Meanwhile, Silver feels conflicted about her feelings for Navid who is back in town.

The episode was rated 8.01 from 70 votes.

Naomi shocks everyone when she announces she won’t be able to oversee Max’s wedding because she has accepted a job in New York and will be leaving immediately. Teddy comes back to town and Dixon rushes back from touring to give his relationship with Adrianna another try, then fails to show up at their meeting spot. Meanwhile, Silver feels like she has to choose between Navid and Liam and makes a life-changing decision.

The episode was rated 8.09 from 76 votes.

Dixon struggles with temptation as he tries to make his way back into the music world, while Annie confronts Jeremy, who stands in the way of her inheritance. Naomi and Holly embarrass themselves in front of Janice Dickinson at a fashion show, while Navid reaches a breaking point with his uncle. Meanwhile, Teddy makes a big decision that upsets Silver.

The episode was rated 8.10 from 63 votes.

Dixon collapses while arguing in the recording studio with Adrianna. In the hospital, they run into Liam who is with Silver to support her during a test to detect if she has the breast cancer gene. Ivy finds out Raj still has cancer and is in the hospital, while Annie meets a new guy Caleb and discovers he is a priest.

The episode was rated 8.35 from 77 votes.