In an attempt to find out who Kelly wants to take to a dance, Zack and Screech bug the girls' sleepover party and the girls get revenge.
Zack, with Screech's help, bugs a slumber party to listen in and find out if Kelly loves him or Slater so she will take one of them to a dance at the Max. When Kelly discovers the microphone, she tricks Zack into thinking that she's a homicidal maniac out to get him, while Zack fends off continuing come-ons from a rather large 12th grade student named Rhonda.—Anonymous