Willy and Peter need to get as far as possible from their sister's annoying kindergarten pageant. But they never expected their hiding place to be a moon rocket blasting their butts into space! There they make a disgusting discovery that could wipe out the moon in one gross stink bomb. Do they have enough gas in their guts to repel an alien invasion from Uranus? Can farts alone rocket them back to earth? And how did their sister's hamster get on board and chew up all the cables? Blast off to a rip-roaring space adventure that will have you howling out both ends!