The storyline of the film goes something like this. Clark and Ellen Griswald (once again played by Chevy Chase and Beverly D'Angelo) realize that their children aren't going to be children much longer, and that they should take another vacation to enjoy the remaining time they have together. Their destination? Las Vegas. Once there, Rusty gets a fake ID and wins some cars, Audrey takes up exotic dancing, and Ellen is befriended by Wayne Newton. And what would a Vacation movie be without cousin Eddie? (Randy Quaid reprises that role.) Clark, on the other hand, meets his rival - a blackjack dealer (played by Wallace Shawn), and quickly gambles away thousands of dollars. How will their vacation turn out?
This film is not nearly as good as its predecessor, but it's a good film nonetheless. If you like the series, this is worth checking out, but it's not essential. If you're new to the Vacation series, start with the first film - it's the true masterpiece of the bunch.
The DVD is severely lacking as far as extras go - this seems to be typical of the Vacation series movie DVDs. We get commentary and trailers, and that's about it. There's really not much other than these things, things that every DVD should have. Still, the actual film is good, and it makes up for this.
Overall this film doesn't top its predecessor, but it's still damn funny. If you want to laugh, pick it up. You'll be glad you did.