Zack, Slater, Screech, and Karla are now on stage disguised as dancers, but they are unable to keep their cover.
They soon escape to the backstage area with Lisa, Curt, and Kelly attempting to call security on Freddy and his two bodyguards, only to have them pretend to be security. Kelly, Lisa, and Curt soon follow them, they get caught too with Zack, Slater, Screech, and Carla and then get held as hostages.
In order to protect Zack and the others, Curt tells Freddy all about his father owning the Stardust and that he can take him to the diamonds he wants to steal, but will only do so if they let the others go. However he doesn't agree to letting them go and they bring their hostages to the vault.
After Curt opens it, and as Freddy is in the vault, Zack, Slater, and Screech act like the Three Stooges to get Freddy's short thug's gun and eventually punch him out. They soon push him into vault with Freddy and the big bodyguard and close the volt on them.
With all the excitement over, Zack and Kelly are now finally about to get married in a quick little wedding chapel, only to be stopped Zack's parents when the arrive in Las Vegas to throw them a real wedding. During the ceremony, Zack and Kelly get another surprise when Jessie arrives in a bridesmaid dress and then begin to remember their time at college and at Bayside.
After the ceremony, Zack and Kelly tell their friends how great it was for them to celebrate their happy day with them. Back at the hotel, Lisa and Curt show up congratulating them on there way to The Indian Reservation and Slater and Carla congratulate them on there way back to Los Angeles and Screech says good-bye to Zack and Kelly while in tears. After Kelly throws the bouquet, Screech is the one to catch it. After catching it, his escort date arrives outside the hotel and begins to chase him as Zack and Kelly get in their limo to leave on their honeymoon.