Still from Dexter's Laboratory S3E9
Dexter's Laboratory › Season 3

S3 E9: The Grand Daddy of All Inventions

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!

Air dateNov 30, 2001
Runtime9 minutes
TMDB rating★ 7.0/10