The Muppets perform the classic Dickens holiday tale, with Kermit  the Frog playing Bob Cratchit, the put-upon clerk of stingy Ebenezer  Scrooge (Michael Caine). Other Muppets -- Miss Piggy, Gonzo, Fozzie Bear  and Sam the Eagle -- weave in and out of the story, while Scrooge  receives visits from spirits of three Christmases  -- past, present and future. They show him the error of his self-serving  ways, but the miserable old man seems to be past any hope of redemption  and happiness.