For the first time that year, the old man laughed. If one of you can fill the barn for a penny, Ill give you the farm and go sleep in the chicken coop, and thats a promise! Bill, Bob and Penny are determined to win the bet with their pa, so they must find a way to fill the barn completely by spending just one penny. Each of the children thinks long and hard and comes up with an idea - but only Pennys plan is ingenious enough to restore harmony to the family.