A mysterious thief has stolen the prosperous Happy Valley's most prized possession: the musical Singing Harp. Can Mickey, Donald, and Goofy find the answer in the irritable Willie the Giant's magnificent castle up in the blue sky?

Credits

Bill RobertsDirector

Walt DisneyMickey Mouse (voice)

Clarence NashDonald Duck (voice)

Pinto ColvigGoofy (voice)

Sterling HollowayNarrator (voice)