A scientist creates a diamond that can focus sun-rays to burn through anything. The villain, in a bid to get the diamond, kills the scientist. The scientist's karate-learning sons, Desh and Vijay, are separated from each other and their mother. Vjay grows up with his karate instructor while Desh is reared by a gypsy camp.
High school senior Bobby Chrystal fails his French class, which will block him from entering Yale. His rich, authoritarian father hires an attractive 29-year-old to tutor Bobby over the summer and help him pass a make-up exam.
The Griswold family are on a quest. A quest to a Walley World theme park for a family vacation, but things aren't going to go exactly as planned, especially when Clark Griswold is losing all thought towards a mysterious blonde in a red Ferrari.