Flint and Sam recall how they met when they almost destroyed the town while competing in the science fair.
Flint has to make up for destroying Sam's precious possessions.
Flint gets irritated and starts to doubt his inventing skills, when his father, Tim is celebrated for inventing a Gum Pencil.
After Sam complains about hating sardines, Flint helps with a new invention.
After Flirt creates a robot that takes out garbage, it starts to think for itself what and who it will get rid of.
Flint and Sam put the birthday celebration of Swallow Falls' oldest sardine at risk.
Flint starts to question Steve's true affection after he wins the Swallow Falls lottery.
Flint and Sam have a difficult decision to make when they decide to babysit to buy a new board game.
Flint and Sam learn what their future holds after he modifies Sam's weather-predicting orb to predict the future.
It's up to Flint and Sam to know what's going on when a new panda comes to town and the people fall under its spell.
Sam suspects the other inventor befriending Flint.
Flint invents a robot-rooster alarm to stop himself from being late for school.
To catch the legendary Sardemon, Tim drags Flint in a Lockwood father-son tradition.
As Earl wants to know what Flint will be inventing next, he goes undercover as a school girl named "Pearl".
Due to Sam's beliefs, she is determined to stop Swallow Falls' annual sardine race.
Sam and Flint try to prove their differences when they get teased for being similar.
Flint must learn to live with the monkey inside him after he unites himself with Steve by mistake.
Flint has to figure out what he invented while sleeping after he kept bragging about it.
Flint accidentally brings the town's statue to life while trying to stop Sam from leaving.
On their anniversary as friends, Flint gives Sam a Cloud-Maker.
Attempting to make his classmates listen to him and make a science mural, Flint invents a toot-inducing bean.
Flint tries to help after Tim gets injured from one of his inventions.
After encouraging Mr. Earl to have a day off, Sam and Flint try to fix things when they know that he is too bored.
When Flint realizes that he will get bald one day, he invents the unbalder, but Tim will help him see the good side of it.
Accidentally, Sam and Flint freeze themselves in the town's time capsule to find themselves in a dystopian future.
Things go sideways when Flint invents a device that will put a good picture of him into the yearbook.
When Flint gets an electric monkey to replace Steve while he is away, Steve falls in love with it.
Eruptive results happen when Flint's robot faces Mayor Shelbourne's robot in a boxing competition.
Tim and Mayor Shelbourne are against each other in parental mastery after Flint and Gil's argument.
Shockingly, Flint discovers that his clone is much more popular than him.
To get rid of Flint's old smelly lab coat, Sam makes him a new one without knowing how special the old one was.
Earl gets Flint to help him get back to his wife after causing trouble between them.
Doubts arise in whether or not Mr. Zorbleck, an Australian businessman is actually Australian after Flint builds him a spaceship.
Tim's brother Jim comes to town for a visit.
On Halloween, the Mayor has a big prize for the kid who makes it through his scary haunted house.
Flint accidentally creates his own Frankenstein while trying to expose Hollywood's pseudoscience.
The story behind the Ratbirds invention becomes clear to Sam.
Flint receives a proposal he can't reject after being forced into holding a yard sale.
Flint feels bound to help the other inventor in town.
Things go wrong with Brent after Sam and Flint expose that he is no longer a baby.
As Sam wants to keep it to herself, she sabotages all efforts to find the lost cat's owner.
It's up to Sam and Flint to save their island from a crashing meteoroid.
While Flint is in charge of a birthday pinata, he decides to enhance it.
Flint is fooled by the Mayor into creating a Fish-Cyborg army.
Tim falls in love with fruits and vegetables instead of eating healthy when Flint's spray invention goes wrong.
The mayor punishes Sam and Flint when Sam discovers his real name.
Sam forces Flint to invent something to help their people see the beauty around them.
Sam reveals her stressful past with the horseshoe contest sport when Flint asks her for help.
Flint introduces Sam to Swallow Falls' unique Christmas traditions.
As Sam approaches the town and discovers the customs and traditions of those around her, Flint tries to have fun as much as possible on this annual holiday.
When Flint meddles in Tim's past through a time machine, the unintended results.
Flint is forced to move to the other side of the island after feeling unappreciated by his town, where he will live a life devoted to new inventions.