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Season guide

90210: Season 4

24 episodes Premiered Sep 13, 2011
Previously on 90210

Season 4 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of 90210 Season 3.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

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Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

17%
83%
Mytharc (4): Crucial lore & season climaxes
Core (20): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Up In Smoke

Sep 13, 2011

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 discove

S4·E2 Core

Rush Hour

Sep 20, 2011

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 t

S4·E3 Mytharc

Greek Tragedy

Sep 27, 2011

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

S4·E4 Core

Let the Games Begin

Oct 4, 2011

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 ta

S4·E5 Core

Party Politics

Oct 11, 2011

Silver is asked to make campaign videos for political candidate Marissa Harris-Young who is running against Teddy’s Uncle Charles for public office. Teddy runs into an old flame an

S4·E6 Core

Benefit of the Doubt

Oct 18, 2011

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

S4·E7 Core

It's the Great Masquerade, Naomi Clark

Nov 1, 2011

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

S4·E8 Core

Vegas, Maybe?

Nov 8, 2011

The gang heads to Las Vegas, where Naomi meets Austin's dad, country superstar Judd Ridge. The guys run into a celebrity at the pool, where Liam gets invited to play in a celebrity

S4·E9 Core

A Thousand Words

Nov 15, 2011

Silver’s video of Teddy's Vegas wedding is leaked to the press, and has damaging effects on his uncle’s campaign. Liam’s modeling career is taken to the next level by Shelia and An

S4·E10 Core

Smoked Turkey

Nov 22, 2011

Dixon tries to pursue a relationship with a resistant Adrianna, while Ivy and Raj’s arguing takes a toll on their relationship. Liam plans a holiday dinner for the gang, and an une

S4·E11 Core

Project Runaway

Nov 29, 2011

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 emba

S4·E12 Core

O Holly Night

Dec 6, 2011

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

S4·E13 Core

Should Old Acquaintance Be Forgot

Jan 17, 2012

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 tha

S4·E14 Core

Mama Can You Hear Me?

Jan 24, 2012

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

S4·E15 Core

Trust, Truth and Traffic

Jan 31, 2012

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 thei

S4·E16 Core

No Good Deed

Feb 7, 2012

In an effort to put her inheritance to good use, Annie volunteers to organize a big charity fundraiser. When Naomi takes drastic measures to land her first event-planning client, h

S4·E17 Core

Babes In Toyland

Mar 6, 2012

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

S4·E18 Core

Blood Is Thicker Than Mud

Mar 13, 2012

Naomi is convinced that Annie’s new business partner P.J. is the perfect man for her, but discovers her sister Jen is also interested in him.. Adrianna and Dixon land a spot in a m

S4·E19 Core

The Heart Will Go On

Mar 20, 2012

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 b

S4·E20 Core

Blue Ivy

Mar 27, 2012

PJ proposes to Naomi and Annie discovers he needs to get married in order to get the rest of his trust fund. Dixon confesses to Navid that he signed a record contract but admits he

S4·E21 Core

Bride and Prejudice

Apr 24, 2012

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

S4·E22 Core

'Tis Pity

May 1, 2012

Navid suspects that Liam and Silver hooked up so he decides to confront Liam on the red carpet of a movie premiere. Annie and Caleb fight their attraction to one another but finall

S4·E23 Mytharc

A Tale of Two Parties

May 8, 2012

A reluctant Naomi tries to sabotage the bachelorette party she has to host for Max’s fiancée Madison, where Madison’s childhood crush, Nick Carter, makes a surprise appearance. At

S4·E24 Mytharc

Forever Hold Your Peace

May 15, 2012

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