Well, first of all, this episode has a nice story on how Goofy and Max decided to make money out of a pizza business. Even though Goofy was willing to put it back to business again, Max wished he could get his hands off being a delivery boy. Although he managed to do so, he found out that his goofy father wasn't suited to deliver pizzas because of his tendency to goof off. After that, Max decided to deliver pizzas again.
This may seem like a simple thing to summarise, but there are more complications in this episode. For example, failing to profit from the pizza business will result in their (whose house, you'll find out) house being towed away, and that Goofy and Max had to be hardworking to make the money. Here, Max had a taste of responsibility, and it taste good. Will they make it? Watch, and you'll know.