Carrie and Doug have some vacation time coming up, but they can't agree on where to go. Doug wants to rent an RV and travel across the country to the Grand Canyon. Carrie wants to spend a week in Paris. They flip a coin to decide on which vacation to take. Doug wins the coin toss, but Carrie has a plan to get the vacation in Paris she really wants. She invites Arthur (who is afraid to fly, therefore announces that he regrets he will not be able to accompany them - uninvited - to Paris) to join them in the RV, hoping that Doug will be miserable at the thought of spending his vacation, trapped in a motor home with Arthur. The plan backfires when Doug invites Spence to come along on the trip as well.
In the end, Doug and Carrie end up staying at home while Arthur and Spence hit the road in the "Roadbird Freedom 5000".