On a special inner city street, the inhabitants—human and muppet—teach preschoolers basic educational and social concepts using comedy, cartoons, games, and songs.
Big Bird worries when Oscar tells him that if Santa Claus can't fit down the chimney on Christmas Eve, nobody would get presents.
As the Metropolitan Museum of Art closes, Big Bird decides to leave his Sesame Street friends behind in search of Snuffy. Once locked inside for the night, educational hilarity ensues as Big Bird and Snuffy team up to help a small Egyptian boy solve a riddle - as the rest of the cast searches for their big, yellow friend.
