Big Bird and Snuffy are planning to go on a picnic when Big Bird finds Gordon and Susan preparing for when they adopt Miles and decides to help. Snuffy, who didn't know about Miles, thinks he's replacing him as Big Bird's best friend.
Susan and Gordon are now parents. They baby-proof their apartment so Miles doesn't hurt anything or get hurt himself. Then they try to get him to sleep, and their friends stop by to witness the baby in slumber. But then, Oscar shows up.
Today, Susan's parents pay a visit to see their new grandson, Miles, for the first time. And Snuffy donates some sand from Hawaii for the sandbox Maria and the kids are building. Today's sponsors are the letters G and K and the number 9.