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Arnold and Gerald try to play a Halloween prank on Grandpa by making him think aliens have landed in the city. However, the broadcast gets leaked and scares everybody in the city.
Rated G | Length 24 minutes
Phillip Van Dyke | Jamil Walker Smith | Francesca Smith | Anndi McAfee | Justin Shenkarow | Christopher Walberg | Adam Wylie | Steve Viksten | Mary Scheer | Dom Irrera | Baoan Coleman | Lou Rawls | Maurice LaMarche | Dan Castellaneta | Tress MacNeille | Kath Soucie | David Wohl | James Keane