It's the first day of class at Bayside High and Zack decides to play sick. When Mr. Belding sends the rest of the gang to see what he's up to at home, they start reminiscing about their summer working at the Malibu Sands Beach Club, and going to Palm Springs for the wedding of Jessie's dad.

Slater unwittingly dooms his chameleon when he leaves it with Screech (Dustin Diamond), who in turn gives it to Zack.