When Kelly learns Zack brought a date to the same restaurant they have reservations at, she calls off the engagement. He soon is able to explain what happened and why he had to work as an escort, with Kelly soon forgiving him.
When Lisa and Kelly arrive in Las Vegas, they soon meet a guy that Lisa is attracted to at their hotel. In the desert town, Screech, Slater, and Zack are released and soon make it to Las Vegas as well, unfortunately without Zack's wedding money.
After getting engaged, Kelly and Zack get ready to go to Las Vegas with Lisa, Slater, and Screech. Before they leave however, Zack's parents try to talk them out of getting married so young.
