When Madeleine's parents go to the Pond Party, they leave Carl and the baby at home for a cozy winter afternoon with a babysitter. But Carl and Madeleine have plans of their own -- they want to play in the snow! After getting all bundled up, they sneak off to go sledding, build a snowman, and even make an appearance at the party and try sliding on the ice at the pond. Of course, resourceful Carl gets the baby home before her parents return -- and...