The autumn winds blow into the small town of Castor, carrying the smells of pumpkins and candy mixed in with a sense of mischief. Ernie and Zelda start the new school year with expectations of the same old grind. One Saturday morning changes everything, though, when a mysterious neighbor moves in next door. Determined to discover who it is, Ernie calls in reinforcements, in the form of his friends, to do some detective work. They quickly...