A small boy + a big bunch of balloons = magic! Billy's dad has a special touch with balloons, turning them into every imaginable shape and creature. But one Christmas Eve, the wind whips up and tiny Billy finds himself and his father's balloons floating away through the clouds. Lots of friends, both human and animal, scurry to the rescue--but instead of bringing Billy down to earth, one by one they end up coming along for the ride. Will Billy succeed in landing safely . . . and help Santa and his tired reindeer deliver their presents too?