'This is a delightful story of a small boy and his two contrasting grandmothers. One is an active, sports-minded exercise nut who has no idea where the kitchen is. The other is a plump, motherly creature who is content to bake chocolate chip cookies topped with melted chocolate. The boy spends one weekend playing catch and working out with slim, athletic grandma and the next baking and eating with sedentary grandma, Life continues this way until athletic grandma falls off her skateboard and sedentary grandma is told by her doctor that she must get exercise. The two grandmas set out fearfully to change their lifestyles, supported and encouraged by their grandson. A major conversion takes place and each grandma literally becomes the other!