Beverly Hills, 90210 (season 1)

Brandon meets and befriends Dylan McKay, a brooding classmate. As they continue to spend time together, Brandon learns that Dylan's bad-boy act masks a hidden life that few people ever see. The beach is the place to be at for the West Bev students and also where Brenda sees Kelly's true colors. Steve's mother convinces him to talk to David after mistakenly thinking that his father is a wealthy TV show producer.

Brenda goes shopping with Kelly and her wild friend Tiffany and wishes that she had their kind of money. Unbeknowest to her, Tiffany is a shoplifter and when they get arrested, Brenda begins losing her mother's trust. Meanwhile, Brandon gets a job at a trendy restaurant where his boss treats him horribly and pays the minority employees less than minimum wage. Cindy grows uncomfortable when Jim hires a maid.

Brandon is excited when Sheryl, his ex-girlfriend from Minneapolis visits. When Sheryl meets Dylan, she becomes aroused by his money and glamour, making Brandon jealous and violent. Brenda develops a crush on her algebra teacher and is disappointed to find out that he has a wife and children that she has agreed to babysit. Cindy worries about Brandon losing his virginity and nags Jim to have the sex talk with him.

When Brandon and Steve try out for the basketball team, Brandon learns that the school recruits minority students from out of district in order to boost their stats and is forced to make a difficult choice in order to secure a spot on the team and make his father proud. Meanwhile, Brenda decides to take driver’s education again, but fails twice and ends up losing Brandon’s car when trying to pick Kelly up from a bad date.

An unreasonable history teacher makes his students' lives miserable by using an infamous steep grading curve and when Brandon learns that Steve gets A's by stealing exams before the test, he decides to follow suit. Brenda and Kelly vie for Dylan's attention and when he states that he prefers blondes, Brenda grows insecure and decides to dye her hair but the result is horrifying.

Brenda takes her mother for granted when she begins idolizing Kelly's cool mother, but unbeknownst to her, inside the Taylor household lies a dark secret as Jackie relapses and starts abusing drugs and alcohol all the while Kelly's pleas for help go unnoticed. Andrea joins Brenda and Cindy in the 15th Annual West Beverly High Fashion Show. David uses his video camera in order to sneak a peek at Kelly in the fashion show dressing room.

Following their disappointing seventeenth wedding anniversary, Cindy feels like the intimacy is lost between her and Jim and engages in an emotional affair with her old college boyfriend who has moved to town, scaring Brenda into thinking her parents are headed for divorce. Meanwhile, Brenda and Brandon participate in a UCLA study on twins. Also, David wants to be the new school DJ.

As the students of West Beverly get pumped for Grudge Week against Beverly Hills High, Brenda grows annoyed by her friends' lack of school spirit. She volunteers for a teen crisis hotline and violates the rules when she takes an after-hours call from a date-rape victim, who is still in danger. Meanwhile, Brandon thinks that a sexy older woman named Nina is attracted to him and makes preparations to have sex with her.

Brandon gets an unexpected taste of fatherhood when he starts dating a scholarly senior with Ivy League ambition named Melissa and then has to baby-sit her infant son while she has a college interview. Brenda and Kelly win a radio contest and get skydiving lessons, but her parents refuse to allow her to go.

Brenda invites Kelly, Donna, Andrea and Kelly's rude friend, Amanda over for a "night of female bonding", but Amanda causes tension within the group when she forces the girls to reveal their deepest secrets. Meanwhile, Brandon and Steve go out and pick up two girls, who show their true colors when they steal Steve's car. Also, David and Scott sneak into the slumber party in order to take lewd pictures of the girls.

The Walshes let Carla, their maid’s niece, use their address so that she can attend West Beverly High and Brandon immediately develops an attraction towards her while wondering what she's hiding. Jim hosts a party for his new client, a sportswear designer and Brandon explodes with anger when he finds Carla waitressing and being used as cheap labor. Also, David tries to get MC Hammer to perform at the school dance.

The West Beverly juniors are panicked by the upcoming SATs, but then everything gets put into perspective when Brenda finds a lump in her breast and faces a test no one can prepare for. Meanwhile, Andrea and Steve decide to study for the upcoming test together and as the night continues, they end up kissing.

Brandon interviews Roger Azarian (Matthew Perry), the school's tennis star, and when he reads his dark and twisted screenplay, Brandon worries that the events in it might come true. Meanwhile, everyone is thrilled by their SAT results except for Donna, who got low SAT scores and begins acting out, unaware that she has a learning disability.

When Jim hurts his back, Brandon teams up with Steve to coach his little league baseball team and has trouble disciplining the entitled players. Meanwhile, Brenda develops a bond with a stray dog and makes a desperate plea to convince her family to let her keep him.

West Beverly prepares for the annual Spring Dance and Kelly, preoccupied with being named Spring Queen and asks Brandon to be her date, which stirs up romantic feelings. Jealous, Steve gets drunk and lashes out at everyone, revealing a deep family secret. Andrea is not going to the dance and is upset when she finds out that Brandon is going with Kelly. Brenda finally loses her virginity to Dylan in their hotel room. David enters a contest to win the first dance with the Spring Queen. Donna has trouble moving in her dress.

Jim gets a job promotion which means that the Walsh family is moving back to Minneapolis. Saddened by the news, Brandon and Brenda prepare to say goodbye to the friends they've made this past year. Brenda worries that her relationship with Dylan won't survive long distance. Brandon contemplates sleeping with Andrea after she offers herself as a going-away present.