When Dexter catches Dee Dee killing ants, he shrinks them both to take her inside an ant colony so that she can learn how organized the ants are.

Dexter is forced to take Dee Dee to the zoo. There, she ends up trying to save an ostrich with disastrous results. Dee Dee and the ostrich switches their places.

Dexter falls in love with a new girl at his school, but he cannot win her heart until Dee Dee helps him with poetry

When Dee Dee’s Judo skills prove too much for Dexter, Dexter learns how to fight back at the same dojo she went to.

Dexter creates a device that turns people into hideous blobs. His parents then sell the device in a garage sale, where it ends up in Mandark’s hands.

Dexter catches the chicken pox, and Dee Dee tells him a ridiculous tale that if he keeps scratching them, he will turn into an evil chicken. Dexter completely restrains himself so that he will not have to scratch it; unfortunately, he is unable to resist and his nonstop scratching eventually does just that.

Monkey narrates a documentary of the future of laboratories and sciences.

Dexter, Monkey, Agent Honeydew, the Justice Friends, Dee Dee, her imaginary friend Koosalagoopagoop, Mandark, his parents, and Dexter’s parents participate in a cross-country race a la Wacky Races.

Dexter and his father enter a golf tournament, but Dexter’s father proves inept at the sport.

Dexter finds out that all of Mandark’s plans are taken from a comic book.

Dexter refuses to admit that blondes have more fun, so Dee Dee secretly dyes his hair blond to prove it to him.

When Dexter’s computer gets laryngitis, Dexter must find a replacement voice.

When Dee Dee tries to cut off a piece of her hair, she accidentally cuts off one of her pigtails. Dexter gives her a potion to make her missing hair grow back. However, Dee Dee squirts too much of it in her hair, and Dexter must return Dee Dee’s hair back to normal.

Old Dexter And Old Dee Dee’s talks about the glory days, and his sister is still there to inject her opinions, telling him what really happened.

Again tired of being short, but mindful of his past failures, Dexter decides to make everyone shorter than himself.

Dexter decides to work with Mandark, but finds himself doing all of the work. In the end, Mandark tries to press the button when Dexter connects the plug in the outlet to bring his show title back.

Mandark gets in touch with nature.

Dee Dee is hired by Mandark’s parents to babysit him.

Dexter tries to improve his eyesight by giving himself laser eye surgery, but goes too far in doing so.

Dexter studies the potato, and when he is fascinated by its power to light up a light bulb, he tries to use it as an energy source.

Dexter tries to emulate the barbarian hero of his favorite comic book.

Dexter’s father is left to watch the kids while his wife visits her sister.

Dexter’s mother attempts to support him during a chess tournament but does nothing but embarrass him.

Dexter and Mandark are both outperformed by a new girl at school, so they reluctantly team up to get rid of her.