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 bring home their new son, Miles. Big Bird and Telly worry that the new parents may run out of love for them and use it all on Miles, the way they can sometimes run out of birdseed.
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.
Today, Oscar is visited by Miss Blechman, a former teacher of his, who has come by to see how well he's stuck to the lessons she taught him back in the day. She is also old friends with Uncle Wally. Today's sponsors: N, Z and 9.
Oscar the Grouch warns Chip and Dip to stay away from his trash can, but it only prompts them to sing a song about how they are the same with the exception of their voices.
