Featuring Jim Henson's Sesame Street Muppets and the Sesame Street Live Cast. Also starring the Metropolitan Museum of Art.

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.