The essential episodes of 90210

Watch these 15 in order and you've got 90210 — each pick states its reason.

1. 01

   S01E01 · Pilot · September 2, 2008 · 1h

   We're Not in Kansas Anymore8.4

   In part one of the series premiere, Harrison Wilson accepts the job position as principal of West Beverly Hills High, forcing the Wilson family to relocate from Kansas to California and adjust to new life in the city - all while keeping a close watch on their troubled grandmother Tabitha.

2. 02

   S01E09 · Top rated · November 4, 2008 · 1h

   Secrets and Lies7.8

   Harry and Debbie reveal to Annie and Dixon that Harry had a son who was given up for adoption 22 years ago. Meanwhile, Silver has the girls over for a girls' night, but the simple night together quickly escalates into a house party.

3. 03

   S01E10 · Top rated · November 11, 2008 · 1h

   Games People Play7.8

   Noami grows spiteful as Annie and Ethan grow closer, causing her to deliver an unwelcomed surprise at Annie's sweet 16 party. Meanwhile, the school is all buzzing over the news that Ryan was given a leave of absence, and Adrianna discovers Navid's secret.

4. 04

   S01E12 · Top rated · January 6, 2009 · 1h

   Hello, Goodbye, Amen8.1

   Brenda receives life changing news. Meanwhile, Dixon grows closer to Christina, and an unexpected secret is destined to rock Adrianna's world.

5. 05

   S01E18 · Top rated · April 7, 2009 · 1h

   Off the Rails7.8

   When Dixon tries to slow down the pace of their relationship, Silver takes a trip to Kansas to learn what he was like before coming to Beverly Hills. Unfortunately, her fragile mental state gets her involved in a difficult situation. Meanwhile, Kelly once again faces her troubled mother Jackie.

6. 06

   S01E24 · Season 1 peak · May 19, 2009 · 1h

   One Party Can Ruin Your Whole Summer8.8

   Adrianna and Navid are forced to make an impromptu exit from the prom when Adrianna goes into labor. Dixon confronts Ethan about Silver when he notices that Ethan might be developing feelings for his girlfriend. Meanwhile, Annie reaches the breaking point when Naomi accuses her of trying to hook up with Liam, and some of her peers (still angry about the after party fiasco) decide to take both verbal and physical action against her.

7. 07

   S02E01 · Top rated · September 8, 2009 · 1h

   To New Beginnings!7.9

   Forced to attend summer school following the police crashing Naomi's after-prom party, Naomi, Silver and Adrianna form a tight bond with one another, while Annie finds herself more isolated from her friends and family as she worries about her hit-and-run. As summer draws to a close, the gang hangs out at the Beverly Hills Beach Club, where Naomi and Silver meet Teddy, the son of a famous movie star. Meanwhile, Dixon and Silver work to save their relationship, but it may be too little too late.

8. 08

   S02E04 · Top rated · September 29, 2009 · 1h

   The Porn King7.8

   Dixon and Sasha continue their whirlwind romance by driving to Napa for the weekend, but on the return trip a flat tire leads to a trunk of porn and a bunch of lies. Annie's confident attitude quickly disappears when she realizes that Jasper, the nephew of the man she hit on prom night, is a student at West Beverly. Navid continues to run the Blaze News and assigns Silver and Gia to interview Jasper for a news piece about his uncle. Things get steamy when Adrianna confides in Teddy, resulting in Adrianna and Navid finally spending the night together. Liam finally finds a way to get revenge on Jen and reveal the truth to Naomi about their night together at prom.

9. 09

   S02E11 · Season 2 peak · December 1, 2009 · 1h

   And Away They Go!8.4

   Liam, Dixon, and Ivy learn that Naomi and Jen will be attending a horse race to watch the racehorse that Jen bought with Naomi's money, and the three of them devise a crafty and very complex plan to finally reveal the truth to Naomi about her evil sister. Ryan also tags along with Jen to the races, and inadvertently learns how Jen acquired the racehorse used to win the race. Meanwhile, Annie and Jasper sneak out to go on a Saturday date even though Harry and Debbie have grounded her for her growing misanthropic attitude.

10. 10

    S02E12 · Top rated · December 8, 2009 · 1h

    Winter Wonderland8.3

    The annual winter dance at the Beverly Hills Beach Club is approaching. Navid thinks Jasper was the one who pushed him down the stairs and asks Adrianna to help him prove it. Meanwhile, Annie questions Jasper about his drug dealing, but Jasper avoids the question when he tells Annie about his suspicions of her involvement with his uncle's death. Debbie tries to smooth over her relationship with Dixon with a trip to an arcade. Teddy has feelings for Silver, making Dixon jealous. Liam tries to rebuild his relationship with Naomi now that she knows the truth about him and Jen. Also, Naomi and Silver decide to spend winter break in St. Barts.

11. 11

    S02E22 · Top rated · May 18, 2010 · 1h

    Confessions7.9

    In the second season finale, after spending time with Liam and seeing his bravery in confessing his theft to his parents Annie finds the courage to confess to her parents about her hit and run. Jasper gets jealous over Liam and Annie's new closeness and sets fire to Liam's boat, leading to a fight between Liam and Jasper. Naomi secretly reveals to Ryan that Jen's baby is his, and Ryan who is upset that Jen will not let him be in the baby's life drives drunk and ruins the school sign.

12. 12

    S03E02 · Season 3 peak · September 20, 2010 · 1h

    Age of Inheritance7.4

    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. Annie has an instant connection with Charlie, a guy she meets at a coffee shop, but seems more interested in exploring her relationship opportunities with Liam.

13. 13

    S04E19 · Season 4 peak · March 20, 2012 · 1h

    The Heart Will Go On7.1

    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.

14. 14

    S05E07 · Season 5 peak · November 26, 2012 · 1h

    99 Problems6.9

    When Adrianna opens at the Hollywood Bowl for a headlining artist, Dixon decides to buy her a celebration gift. Suspecting he might propose, Silver convinces Ade to come clean about her affair with Taylor. Annie confronts Riley about standing her up for wrongly suspecting that Annie is uncomfortable with his disability. Naomi encourages Max to hire an executive to replace Alec, but she's uncomfortable when the perfect candidate-on-paper turns out to be a gorgeous girl, Bryce Albright. Liam receives a threatening letter that suggests the anonymous source knows the truth about Vanessa's disappearance, and he's relived when off-duty L.A.P.D. officer, Ashley Howard, becomes his bodyguard.

15. 15

    S05E22 · Series finale · May 13, 2013 · 1h

    We All Fall Down6.2

    Adrianna is stuck inside the collapsed stage after an explosion, so Navid decides to go and rescue her by himself but ends up in trouble after finding that Ade's foot is trapped. Silver receives a phone call from her doctor who tells her she has cancer.