Beverly Hills, 90210

After the summer break, everyone prepares for university life. After working all summer at the Beverly Hills Beach Club, Brenda leaves Beverly Hills to go to college in Minnesota and finds that her old friends now see her differently. Meanwhile, David and Donna seek out some affordable housing on the beach. As college approaches, Steve and Brandon rent a beach front house in Malibu for the final two weeks of the summer, and they get a surprise visit from Steve's former girlfriend Jill Fleming, which makes Celeste jealous. Kelly returns from a two-month trip to Europe, without Dylan, who has been rejected acceptance into Berkeley. Also, Andrea frets with Gil Meyers over her deciding to stay in California to go to college.

Donna is afraid to tell her mother about David living with her and Kelly at their new beach front house. Kelly tells Donna about her troubles with Dylan during their stay in France. Dylan returns from Europe to reconcile with Kelly who admits he was faithful to her. Meanwhile, Steve and Brandon's competition for Jill's affection reaches a new level as Brandon learns some long kept secret about her. In Minnesota, Brenda becomes miserable with college life as well as deals with her brash roommate Darla Hanson.

Brenda's return to Beverly Hills both startles her parents and upsets Brandon's plans for her bedroom. Brenda and Dylan spend a relaxing day together far away from the pressure of school and Kelly. Meanwhile, the rest of the gang begins their week at California University. Steve decides to rush a fraternity, Andrea meets her cute resident adviser Dan Rubin, Dylan chooses to forgo college, David and Donna try to audition for the DJ's on the California University's radio show, and Brandon becomes involved with college politics when he attempts to join the school paper the Condor and meets the student editor Josh Richland.

It's Rush Week at California University and the group decides whether or not to pledge a Greek house. Andrea is dismayed when the sorority Alpha Omega's look down on her for her Jewish background, and Steve badgers Brandon to pledge Kappa Epsilon Gamma fraternity, otherwise known as KEG House. Brandon also gets involved with the school's progressive party, becoming the Freshman Representative to the Student Senate. Meanwhile, Kelly runs into John Sears, a past love whom she'd rather forget.

To kick off the start of classes, the university throws a pool party for the incoming freshman. The whole gang attends and has a blast, but Steve's incessant flirting infuriates Celeste. Brenda gets a job in her father's office, Andrea and Dan plan a date, and Dylan clashes with John Sears over Kelly.

David's late night radio show leads him to start taking caffeine pills, and the mess he makes around the apartment upsets Kelly and Donna. Brenda goes on a blind date with Stuart Carson, the son of one of her father's clients and it turns out to be an unexpected success. Meanwhile, Kelly cools her relationship with Dylan, and Andrea's relationship with Dan takes a surprising turn.

After his brush with violent crime, Dylan becomes obsessed with self-defense. He purchases an illegal gun and makes several trips to the shooting range. Meanwhile, Brenda and Stuart introduce their parents to each other over lunch in Bel-Air. Brandon is recruited by his sociology professor, Corey Randall, to tutor the university's basketball star, D'Shawn Hardell. Andrea and Dan mull over going public with their affair.

The Walshes are celebrating their 20th anniversary, and before the evening is over one Walsh twin's life will change forever. Stuart has a surprising suggestion for Brenda, and Brandon startles a gun-wielding Dylan. Meanwhile, Andrea meets a young bartender, named Jesse Vasquez, at the anniversary party. Brandon falls for an anthropologist grad student named Lucinda Nicholson whom he meets at a local gym. David's father, Mel, asks David to look after baby Erin while he takes off somewhere which angers Jackie when she finds out.

Brenda is furious when she finds a prenuptial agreement in Stuart's briefcase, but she grows even angrier when she discovers a plot by her own parents to break up her engagement to Stuart. Brandon continues seeing Lucinda and is shocked to discover that she's married... to Professor Randall. Steve goes on a double date with one of his frat brothers... but the date doesn't include Celeste. Meanwhile, Jackie sues Mel for full custody of Erin which causes tension in the beach apartment between David and Kelly.

Brenda and Stuart tire of listening to their parents squabble over wedding preparations so they head to Las Vegas for an old-fashioned elopement. In a show of supposed solidarity their friends follow, but they may have more up their sleeve than a celebratory bottle of champagne. Steve's jilted date, Laura, won't stop calling him. Meanwhile, Professor Randall invites Brandon to dinner, hosted by his wife... Lucinda Nicholson who continues to flirt with Brandon every chance she gets.

The campus is caught up in a "Take Back the Night" movement, and Steve finds himself fingered as a rapist by the jealous Laura. Steve must find a way to prove his innocence to those he loves, as the campus takes sides. Meanwhile, D'Shawn attempts to blackmail Brandon to take his mid-term paper when he thinks that Lucinda and Brandon are involved. John Sears shows his true colors to Kelly who finally rejects him.

Brandon's road trip to find himself leads him to former love Emily Valentine, whose twisted obsession once tore their love apart. A now emotionally healthy Emily is thrilled to see him and the two spend a romantic week in San Francisco. Back in Beverly Hills, Andrea is also falling hard for Jesse, behind her boyfriend Dan's back. Meanwhile, Dylan spends Thanksgiving with the Walshes, sending ex-girlfriend Kelly into a fit of jealousy over Brenda's presence. Steve stops John Sears from trying to seduce an underage teen girl during a KEG party which makes Sears vow to get back at Steve for his interference.

In San Francisco, Brandon learns that Emily has been accepted to the prestigious Cousteau Institute in France, but does not want to attend because she and Brandon are in love. Brandon observes her passion for marine biology and encourages her to pursue her dream. Back in Beverly Hills, it's Hell Week for the Greek geeks of C.U and that means Steve, Donna, and Kelly are in for a series of humiliating experiences. But some take the fun too far and before the week is over, someone may end up in jail. Meanwhile, Brenda balks when she is asked to appear nude in an experimental campus play.

David and Donna head to Chinatown for their anniversary and Donna finally decides to sleep with David. But a visit from her parents cancels all plans. Meanwhile, the vindictive Professor Randall decides to press charges against Steve for stealing his autographed baseball. Brandon returns from his San Francisco trip and blackmails Randall to drop the breaking-and-entering charges against Steve by threatening to reveal that Randall has, for many years now, been wrongfully grading term papers to athletic students so they can pass in order to play sports for the university. Elsewhere, Dan is bitter about Andrea's relationship with Jesse which results in their breakup and Dan leaving the university.

The winter holidays have arrived but no one's plans are going according to plan. As Dylan prepares to go to Baja for Christmas, a mysterious woman, named Suzanne, and her 11-year-old daughter, named Erica turn up on his doorstep, claiming to have a connection to the McKay lineage. Meanwhile, the Walsh family plans a Hawaiian holiday, but end up stranded in the airborne plane. Steve dresses up as Santa for disadvantaged children. Frustrated that Donna won't give up her virginity, David starts to act coldly towards her during a Christmas party at Mel's house. Also, Jesse takes Andrea to a midnight mass.

After a hazing prank gone wrong, the KEG house hopes to avoid charges by unfairly distancing itself from Steve. When Steve learns he was set up by John Sears, he must prove it to his "brothers" or face expulsion from the fraternity. Meanwhile, Dylan offends Suzanne when he decides to do a background check on her. David starts abusing drugs (crystal methamphetamine) to keep up with his busy schedule, while Donna wonders what's wrong with his sudden change in behavior. Also, Brandon tries to get D'Shawn to take his mid-term finals, then an accident during a game sidelines D'Shawn, forcing him to study to pass his mid-term.

David's addiction to stimulants spirals out of control and the result could cost him Erin's life. Meanwhile, the gang takes a ski trip where Donna meets a cute ski bum named Chad, but her attraction to him is complicated by her still strong feelings for David. Andrea gets a life-altering shock when she learns that she is pregnant. Which Suzanne out of town, Dylan spends the day with Erica teaching her how to surf, which takes a turn when Erica gets her first menstrual period, forcing him to turn to Cindy for assistance. Dylan also learns that Suzanne has been keeping secrets from him when Jim makes a background check of Suzanne on Dylan's behalf with her social security number and uncovers a hidden bank account containing $20,000 after Suzanne has previously told Dylan that she is broke. When Dylan confronts Suzanne with the lie, she tells him that the money was only recently deposited into her account from a property insurance settlement. Dylan believes Suzanne and agrees to trust her from now on, but Jim continues to remain suspicious about Suzanne and her intentions for Dylan.

Brandon is chosen as the freshman representative of an elite national task force, which will help to make decisions in Washington regarding America's college campuses. Andrea grapples with her pregnancy and her decision to tell Jesse. Meanwhile, Nat suffers a heart attack and the future of The Peach Pit is in jeopardy. David seeks treatment for his drug use while trying to find a substitute for his radio shift and finds Steve, who does a bad job. Dylan gets Suzanne a job at the Peach Pit as a waitress and then tries to help out when Nat's cousin, Joey, wants to sell the Peach Pit due to Nat's failing health. Also, Cindy becomes involved in university life when she takes a part-time job at CU as a courtship instructor.

With Nat still in the hospital awaiting heart surgery, Brandon temporally takes over running the Peach Pit, while Dylan rescues the place after he buys out Joey's share, making Dylan the co-owner. Meanwhile, David's drug problem returns, resulting in Kelly and Donna moving out. Then, David loses his radio DJ job after the station manager, Howard, fires him after seeing that David is completely out of control with abusing drugs. Jesse disagrees with Andrea about her decision to get an abortion. Also, Brandon learns of Lucinda's divorce from Professor Randall and now wants in on a relationship with her.

Andrea and Jesse's impromptu engagement leads to tension in the Zuckerman household, which upsets the pregnant freshman. How can she marry without the support of her parents and her grandmother? Donna tries to make up with David, whose increased drug use turns her away. David also steals $150 from Mel to buy more amphetamines for himself. Later, when David's drug dealer is arrested, he finds himself holding a huge stash of narcotics and calls on Dylan for help who makes a solo intervention to make David choose to quit drugs or end up in jail... or a coffin. A dangerous affair begins between Brandon and Lucinda, while her true colors are shown when she begins teaching an anthropology class of human sexuality and preaches the need for multiple partners for she sees sex as her own personal weapon. Also, Brenda gets a surprise visit from a long-absent Stuart on Valentine's Day.

Brandon uses Kelly as his date at a university social event to shield his affair with Lucinda from Josh Richland, the snooping student reporter from the Condor who is determined to dig up any dirt on Brandon. Meanwhile, Brenda and Stuart travel to Palm Springs where they find big complications from a small mistake Brenda makes which leaves them stranded in the desert, where Brenda finally breaks off their engagement for good. David rents a piano as a new hobby while Kelly moves back in with him and Donna. Also, Andrea lets Steve use her dorm room which he rents out to Muntz and his other frat brothers.

Brenda and Donna adopt a stray dog, Rocky, who they fear has been mistreated. When Brenda learns he is a survivor of medical testing, she gets involved with a group of campus animal rights extremists. Meanwhile, Brandon and Kelly's fake relationship takes a very real turn during a Task Force retreat, which upsets and confuses Kelly, who apparently still harbors feelings for Dylan. Also, Brandon meets the chancellor's wild-child daughter, Clare Arnold, who makes no secret of her attraction to him. Also, Lucinda temporally loses interest in Brandon when she flirts with Dylan to ask him to finance her documentary film. Elsewhere, Andrea refuses to let Steve use her dorm room anymore after finding out that Steve sublets it to his KEG brothers.

Brenda and Donna attend an animal rights rally, and are crestfallen when the university refuses to suspend animal testing. After the dog Rocky dies of cancer, Brenda becomes involved with a small group of radicals. She serves as lookout when the group breaks into the university research building and tries in vain to save Andrea's lab (which does not harm animals in its testing). Brenda is arrested. Meanwhile, Kelly and Brandon are furious when Dylan refuses to fund Lucinda's documentary film. Dylan finally tells Kelly that Lucinda attempted to seduce him in order to get money to fund her documentary. Kelly also confesses her kiss with Brandon. The jealous Dylan arrives at the Walsh house to fight Brandon, but the tension is defused when he accidentally punches Steve. When Brandon confronts Lucinda that she tried to seduce Dylan just to get a grant for her film, she shows no remorse over it and finally tells Brandon that she does not believe in monogamy, On top of that, Lucinda also claims to have had many sex partners before Brandon, and even during her marriage with Professor Randall. Brandon does not take the news well and quietly breaks up with Lucinda.

Brenda calls Dylan from jail in the hopes of keeping her arrest a secret, but he is forced to tell her parents. Brenda's friends avoid her out of fear of being accessories after the fact and Kelly acts angry because she is tired of Dylan coming to Brenda's rescue. Brenda faces felony charges, as her crime was a federal offense. An FBI agent who had gone undercover with the activists offers her immunity in exchange for her testimony. Kelly apologizes for shunning Brenda. Andrea gives Donna a healthy puppy (whom they name Rocky II) to take her mind off Rocky's death. Meanwhile, Steve and his overbearing father, Rush, take on a baseball star and his father in a father/son golf tournament. Steve catches his father cheating and forces him to complete the game honestly. Also, Lucinda finally receives a grant for her movie and leaves the university. The nosy reporter Josh threatens to expose Brandon's affair with Lucinda unless he endorses his campaign for student president. Brandon calls his bluff and Josh eventually has second thoughts.

Brenda discovers a diary hidden in her window seat that apparently belonged to a previous resident. Brenda becomes engrossed in the girl's accounts of the political struggles and her own personal crises in the years 1968 and 1969.

When Steve accidentally discovers that the KEG house president, Mike Ryan, is a closeted homosexual he faces a crisis of conscience: to tell or not to tell? While working with Kelly to recruit guys for the "Men of CU" beefcake calendar that they're working on, Donna goes on a spontaneous date with D'Shawn just to make David jealous when she finds him flirting with his blind savant piano teacher Holly.

Brenda is thrilled when an acclaimed director, named Roy Randolph, arrives at the university to direct the campus production of Cat on a Hot Tin Roof. But things so south when she finds herself competing against Kelly for the lead. Meanwhile, Clare Arnold arrives on campus and takes extreme measures in her pursuit of Brandon. Steve is reunited with Laura Kingman (the girl who tried to accuse him of date-rape), where he coaches her for the same lead role, while Kelly also wants in on the part. Also, Dylan tries to help a jealous Erica accept her mother's new chemist boyfriend, Kevin.

Brenda feels betrayed by Kelly's decision to audition against her for the lead in the play and refuses to speak to her anymore. But Kelly isn't the only one competing against Brenda for the lead as Laura tries out for the role in a call-back audition. Meanwhile, Clare tricks Brandon into taking her out to her senior prom at her posh boarding school which leads to Brandon getting decked by an angry passerby at Clare's hotel post-prom party. Jesse's not around when Andrea has a medical emergency and she's forced to call on Donna for help to take her to the hospital. Elsewhere, Kevin continues to charm his way into Dylan and Suzanne's lives which makes Kelly feel left out as she begins to distrust both Kevin and Suzanne once again.

After Brenda finally wins the lead role in the play, the furious and mentally unbalanced Laura attempts to sabotage Brenda's acting career by spreading rumors that Brenda had sex with the director, Randolph, to win the lead. Meanwhile, Kevin impresses Dylan and Erica when they visit his lab where he tells Dylan about his clean-up plans for Santa Monica bay which are under funded. Dylan asks Kevin if he could act as his beneficiary to open up his own chemical clean-up company, while Kevin also announces his engagement to Suzanne. Kelly continues to resent Suzanne and Kevin's presence which drives a further riff between her and Dylan after she tells him that something is not right about Kevin and Suzanne after catching them in a series of insignificant lies. Dylan refuses to listen to Kelly. Also, Jesse also suggests more bed-rest for Andrea who continues to feel unwell over her pregnancy. Elsewhere, Brandon speaks with Clare's father over her wild behavior while she's making future plans to travel with him.

Dylan and Kelly finally break up due to the tension between them as well as Dylan spending more time with Erica, Suzanne and Kevin. Kelly openly tells Dylan that she doesn't trust Suzanne and Kevin over their continuing presence. One morning, Erica tells Dylan that she overheard her mother and boyfriend talking about moving to South America, but Kevin and Suzanne easily convince Dylan that Erica misheard what they were talking about and that they want to relocate Kevin's new chemical company in Arizona in the southwest. Dylan considers investing in Kevin's new business, as does Jim, who agrees to be a silent partner. Meanwhile, Brenda finds old feelings for Dylan returning to her when he gives her an opening night gift before the play. Elsewhere, David sees danger of his drug use returning in working with a new rock band for the CU's Mardi Gras. Andrea is hospitalized and has strange dreams fearing she may lose the baby. Also, Brandon tries to meet with an elusive Chancellor Arnold after he sees that his name is not on the list of Task Force members set to meet the President, thinking that the time he spent with Clare may have cost him the trip to Washington. But, Brandon eventually learns that his name being absent from the list was just a printing mistake all along.

Brandon travels to Washington D.C. with the Task Force where Clare and Lucinda both grapple (literally!) for his attention. Meanwhile, Brenda is offered the opportunity of a lifetime: the chance to spend the summer studying theater at the Royal Academy in London. At the CU Mardi Gras carnival, David seeks to meet and impresses pop star Kenny "Babyface" Edmonds and his recording manager Ariel with his keyboard music. Steve becomes upset when he runs into his former girlfriend Celeste, who is now with John Sears. Elsewhere, Kevin and Suzanne get married in a semi-formal ceremony where he persuades Dylan to cut out any outside investment in their business offer. Also, Andrea goes into labor and gives birth to a baby girl.

Kelly travels to Washington to meet Brandon and they spend a romantic day together, getting away from Clare and Lucinda before ending up in bed. Donna catches David in a compromising position with Ariel and breaks up with him. Steve continues to clash with Sears over Celeste's affections. Meanwhile, Andrea and Jesse experience the joys and fears of parenthood for their premature daughter. Jim is furious when Dylan decides to finance Kevin's chemical company all by himself and fires him as a client. The day after, Dylan gives Kevin full power-of-attorney control over his money. However, Jim's original suspicions turn out to be entirely correct; as Suzanne and Kevin really are con artists who have been plotting to steal Dylan's inheritance money and flee to Brazil with it for months. Erica doesn't want to go to Brazil and leaves a note for Dylan in an airport bathroom stall. Brenda tells Dylan she still loves him and won't be gone forever. They sleep together one last time before she leaves for London..