A website purity test makes the rounds at the school and the ones filled out by Lisa and Nancy leads to various sexual dilemmas for Zack, Ted, Gilby and JC.

Zack and Gilby's part time jobs at a video store end in disaster, when Gilby's attempt to rent porn to minors creates an addiction problem for JC, and girlfriend troubles for Ted.

Zack believes he's gotten VD, and swears the guys to secrecy. When Ted gives Nancy a vague hint about Zack's condition, she and Lisa leap to the conclusion that Zack needs a kidney transplant