Uncle Buster, the famous scientist, inventor and time-traveler, has vanished and it's up to Molly, George and Speegeltog to rescue him. They follow his Kryptoplasmic Trail to a snow-covered world and a warehouse run by a jolly old man with a white beard and a red suit, whose name is not Santa. Join Buster Brightbuckle on another adventure through time and space as Molly and her friends do their very best to bring him home before Christmas.