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The Grand Daddy of All Inventions
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Season: 3
Episode: 9
Writer: (additional writer) Jason Butler Rote
Director: Craig McCracken

Rob Renzetti

Previous: "A Failed Lab Experiment"
Next: "Poppa Wheely"

The Grand Daddy of All Inventions is the 9th episode of season 3.

Synopsis

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!

Plot

Dexter is working on an invention in his laboratory which is an energy processor that can make infinite energy that never runs out and can be used for the world. Everything is going according to plans until there is a power outage and his experiment gets ruined. He tries to do it again but then his mom calls him down to go to his grandpa's house.

When Dexter is at his Grandpa's house, he is very bored with what he does. Then, his grandpa tells him that he has a secret laboratory too. He goes over there with him and it turns out just to be the garage. Grandpa shows him his latest invention which is just a bunch of random stuff. Dexter leaves because he is bored with it and his mom takes him home.

After he leaves, grandpa's invention turns out to be a machine that makes inifinite energy just like what Dexter was trying to build back in his lab back at home.

Characters

Trivia

  • Grandpa's house has the exact same design as Dexter's house.
  • This segment was part of the final episode to have Christine Cavanaugh as the voice of Dexter before her retirement from voice acting (though her very last performance as Dexter would be in "Tele-Trauma").
  • This is also the final episode to debut in 2001.

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