Hoping to bring his family closer together and to recreate his childhood vacation for his own kids, a grown up Rusty Griswold takes his wife and their two sons on a cross-country road trip to the coolest theme park in America, Walley World. Needless to say, things don't go quite as planned.
Ben Archer is not happy. His mother, Sandy, has just met a man, and it looks like things are pretty serious. Driven by a fear of abandonment, Ben tries anything and everything to ruin the "love bubble" which surrounds his mom. However, after Ben and Jack's experiences in the Indian Guides, the two become much closer.
Unemployed and recently dumped, Mitch and his buddy Sam start a revenge-for-hire business to raise the $50,000 that Sam's father needs to get a heart transplant. The dirty duo brings down a movie theater manager and hires hookers to pose as dead bodies during a live TV ad. When a wealthy developer hires the guys to trash a building (so that he can have it condemned), problems arise and a feud ensues.