 When Fozzie and the Muppet Show gang drop in unexpectedly on Fozzie s mother, she is forced to cancel her winter vacation plans and entertain them all. Soon the Sesame Street gang comes by as carolers, and then Kermit and his nephew Robin discover a Fraggle Rock hole in the basement. A snow storm blows in, stranding everyone at the house, except for Miss Piggy, who arrives just in time for all the Muppets to celebrate Christmas together.