Dr Knutt, humiliated in a game of hackey sack, uses an enchanted hackey sack to seek his revenge, shrinking everybody... including (by accident) himself. This is fine. He has an antidote. It's just that it's in the lair, which is... some way off now. Over the long and arduous journey, the gang must contend with hunger, thirst, distance, soldier crabs, mountain ranges, and the impossible whims of a megalomaniac.