Arthur is sad that he cannot go to Camp Meadowcroak with Buster since he is going on a road trip with his family. The Reads face many mishaps such as their hotel reservation getting cancelled and it rains consistently until the last day of their trip. When Arthur gets back, he finds out that Buster had an even worse trip than him. Arthur and D.W. visit their Grandpa Dave, who lives on an old, rundown farm. Grandpa Dave does not want help running it, but Arthur and D.W. are concerned by the state of things and try to help him fix up the farm with the help of his friends.