When gravity stops working, Casper discovers that it's because a little boy named Beelo has escaped from his world and his people are searching for him. Casper agrees to help him.; Beelo is captured, and when Casper follows he discovers that Beelo's world is below the surface of the earth.; Casper convinces Beelo's father, the king of Gravitonia, to let Beelo visit the upper world every year.; Spooky tries to help a knight looking for a dragon to slay.; One bird tries to show another that there is indeed such a thing as a ghost who doesn't scare.; Casper tries to secretly help a foul-mouthed witch so she'll stop swearing.; Casper helps a motorist get over a washed-out bridge.