The gang travel to Palm Desert for Jessie's father's wedding. His job as manager of a luxury hotel there guarantees them wonderful accommodation, but Jessie takes an immediate dislike to her father's much younger bride.

As the wedding approaches, Jessie desperately tries to sabotage things, Zack and Kelly grow closer, Screech's quest for a date continues, and Slater attempts to impress Christina and her father.

Zack, Slater, Screech and Lisa reminisce about their summer working at Malibu Sands beach club and attending Jessie's father's wedding in Palm Desert.