Rusty Griswold is a young father and a model family man who is eager to bring his family together and recreate vacations from his childhood. Together with his wife and two sons, he decides to make an unforgettable journey across the country, the ultimate goal of which will be the best theme park in America. Having carefully planned everything, they set off on the road, hoping that a very fun and exciting journey awaits them.

At the beginning of the journey everything is going as well as possible, but the further they get away from home, the more problems await them ahead. Everything went completely differently than Rusty planned, but he is not going to stop and is ready to do everything possible to get to the destination and give his family the best vacations.