Arthur and his friends do a play about a rich guy in a mansion (Arthur) who is scared of a ghost. The rich man doesn't believe in ghosts. All of his friends though say that they are real.
Arthur on the other hand, doesn't fit in his pants. So he has to find another suit at the store fore his play. But, he finds out he has to get husky pants. The only husky suit they had though was ugly. So Arthur ate healthy foods, and exercised with a speedometer.