At a reunion party at the Beverly Hills Beach Club, Clare is stunned after she learns of Steve's past relationship with Kelly, who learns there's more to the story than she knew. Meanwhile, Kenny puts a social spin on his business with Valerie, who once again throws romantic common sense to the wind. David's new friend, Mark Reese, needles Brandon into joining the college TV station. Donna meets an old high school friend whom she once has a crush on. Also, Steve's annoying stepbrothers, Ryan and Austin, return and learn another hard lesson in finding girls.

Andrea Zuckerman arrives in town for a visit as the gang prepares to go to their five-year high school reunion at West Beverly High. She reveals her troubled life and failed marriage to Brandon. Meanwhile, Donna becomes jealous about a Rolling Stones magazine article detailing Noah's single status, which prompts her to sneak away from the dance to the Peach Pit After Dark to see if Noah will be true to her. Valerie creates a new persona for herself and David in order to fit in at the reunion. Steve's macho image takes over when an old girlfriend, Rhonda, drives him away from his date, Janet, and leads him into a prank. Elsewhere, Kelly also deals with a former boyfriend, Ross Webber, who is attending the reunion.