Dylan's felonious father is up for parole but it gets denied. Brandon is suddenly hot for Ahn-drea when she gets a boyfriend. Brenda and Donna arrive in Paris and accidentally order veal brains for dinner.
A few days before she's due to leave Paris, Brenda meets Dean Cain and for some reason decides to speak English to him in a terrible, phony French accent. Brandon, meanwhile, tries to line up a job interview for a hostile homeless man.
The gang returns to West Beverly Hills High to begin their senior year. Kelly gets depressed by the sight of Brenda and Dylan kissing all the time, and Ahn-drea wigs out when the new English teacher appoints Brandon as editor-in-chief of The Blaze.
A reporter from a sleazy tabloid news show gets Brenda to dish about her self-entitled friends, then uses the information to exploit the teenagers for ratings. Steve is offered a legacy key that will give him unfettered access to a bunch of forbidden stuff at West Beverly High.
Brenda and Brandon are shocked to discover that their parents can only afford to send one of them to an expensive, out-of-state college. David walks in on Kelly in the bathroom and sees her naked, and Steve accepts the legacy key from B.J. Harrison, but is dismayed to learn that it doesn't actually unlock anything at West Beverly High.
When a football game is canceled between West Beverly High and Shaw High School because of a shooting on Shaw's campus, Brandon deludes himself into thinking he's shaking things up when he invites the Shaw kids to a Beverly Hills dance.
Brenda reconnects with with her Paris fling, Dean Cain, and finally comes clean about not being a native Parisian. Steve enlists Herbert to help him break into the school's computer system to improve his shitty grades, and Ahn-drea nearly becomes roadkill when she's seriously injured in a hit and run.
Brenda starts dating Dean Cain, but totally schizzes out when she catches Dylan and Kelly together. Steve realizes he might be really screwed after breaking into the school's computer system to tamper with the grade bank.
Nikki encounters her abusive rock star wannabe ex-boyfriend and it's obvious she's still really into him. Steve is forced to confess to the computer break-in, and Dylan meets a rich woman who owns a ranch with horses, and the two engage in an awkward May-December hookup.
Brandon encounters homeless military vet Jack Canner as he's picking through a dumpster, and invites him to spend Thanksgiving at the Walsh house. Dylan's felonious father is released into his custody for two days, and Steve breaks the news to his mother that he got expelled from school.
Steve and Brandon briefly enter the dangerous world of illegal car racing, and Brenda and Kelly agree to go on a blind double date with who they think are two Ivy Leaguers, but they're dismayed when the guys turn out to be prepubescent dorks.
During a mother-daughter spa retreat, Jackie discovers that Mel has been cheating on her. Papa Walsh admits to a client that he's hot for his secretary Dottie, and Brandon starts gambling with a shady bookie named Duke.
Dylan's father is released earlier than expected from prison and throws himself a party that hardly anyone wants to attend. Dylan officially chooses Kelly as his new girlfriend and gives Brenda the heave-ho and ends their noxious relationship for good.
Iris arrives in town to keep Jack from looting Dylan's bank account, but then totally caves and signs the papers needed to dissolve the trust. Brenda is depressed over her final breakup with Dylan and mopes around in unfashionable clothing. Steve hooks David up with Icon Records, but the head of the company thinks Steve is a yutz and orders David to cut him loose.
Cash-strapped Jackie informs Kelly and David that she has no choice but to put the house up for sale. Papa Walsh signs the papers needed to dissolve Dylan's trust fund, and Jack McKay fakes getting blown to smithereens.
Dylan hallucinates an angry figment of himself while he mourns the sudden loss of his father. When the implausible media frenzy surrounding Jack's untimely demise becomes too intrusive, Brenda invites Dylan to temporarily bunk at the Walsh house.
Brandon runs afoul of Duke when his gambling debts start to pile up. David is convinced by Serge Menkin to record the most horrible song in his repertoire, "Precious", and then gets dropped by the president of Icon Records. Kelly becomes insecure about her non-existent weight problem and starts popping diet pills.
Kelly passes out at her eighteenth birthday party after starving herself and popping one too many appetite suppressants. When Brandon and Steve appear on a cheesy TV dating show, Steve wins a dream date with a pretty girl named Celeste.
Kelly is voted "most beautiful" in the senior poll, but gets mad at Dylan when she thinks he only values her for her looks, great fashion sense, and sexual favors. At a Lakers game, Steve is randomly chosen to make a half court shot, which he does and wins $10,000. Brenda applies to the University of Minnesota.
Steve, Brandon, and Dylan get duped by a pretty con artist who pretends to work as a celebrity tour guide. The rest of the gang goes to Magic Mountain for Senior Ditch Day, where Kelly gets her wallet stolen and Donna beats up the mugger.
After drinking too much champagne at Mel's pre-prom party, Donna arrives at the prom drunk, gets sick, vomits repeatedly, and when her friends try to hustle her out of the hotel, she falls over in an obvious drunken stupor right in front of Mrs. Teasley.
When the school board rules that Donna will not be permitted to graduate because of her drunkenness on prom night, Brandon organizes a massive Donna Martin graduates! protest...and at the last minute appeases the junior class by agreeing to tack on the issue of the unpopular dress code.