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Dexter's mom takes him to his grandpa's house. At first he thinks it's going to be a boring day until he discovers that his grandpa has a secret lab!
First Air Date : Apr 28, 1996
Last Air date : Nov 20, 2003
Episode : 221 Episode
Season : 4 Season
Runtime: 7:14 minutes
Studio: Cartoon Network
Country: United States of America
