Maple is going to be a big sister soon, but she's not sure what big sisters really do. When given a list of big sister duties by her mom and dad to help her get ready for the arrival of the new baby, Maple springs into action. If she can successfully complete the list, she'll secure the title of Good Big Sister and know all the ins and outs of what a big sister is all about; she's a big sister in training. The Good Big Sister's Checklist helps sisters-to-be...