Gil finds Flint's most prized possession, Einstein's moustache, and he starts wearing it.
When Flint's inventing makes the power bill skyrocket, Tim takes the Lockwood house off the grid.
Sam receives a pet penguin from her Pet of the Month Club.
Mayor Shelbourne suffers a crisis of leadership when Flint beats his high score on the arcade's most difficult game.
Flint invents a machine to bring Sam's imaginary friend into the real world.
During Swallow Falls' annual Brent Hog Day festivities, Sam sets out to reveal that the beloved celebration is a scam.
When Flint creates an invention to make Earl believe his son, Cal, can talk, Earl goes overboard showing off his genius baby.
When Mayor Shelbourne incorrectly believes Flint's invention has made him invisible, he lives out his dream and goes on a tear through the town.
When Flint's new invention gives Gil some much-needed confidence, the mayor demands a moxy-boost of his own.
Sam tries to help a new student settle into Swallow Falls.
Brent offers to rid Flint's lab of a squirrel infestation.
Flint suspects that Shelbourne may be a robot.
When the Fizzy Fish soda corporation takes over Cannery High, Flint and Sam take their protest right to the top.
When Tim brushes off his guitar and revitalizes his classic rock act, Flint attempts to modernize his dad's outdated sound.
When Mayor Shelbourne throws out Gil's favorite Poppa Piglet toys, Gil leaves home and moves in with Flint.
Flint dons a worm suit to try and drum up business for his dad's bait shop.
Flint's creation of an AI alter ego backfires when his computerized self starts taking over the real Flint's life.
Sam pretends to be Flint's new robot, but finds herself in peril.
After destroying the town yet again, Flint does his best to be an ordinary kid.
Hector tricks Flint into helping him win a spot on the Shelbourne Walk of Fame, endangering the whole town in the process.
Tired of Shelbourne's greedy taxes, Flint convinces his father to run for mayor.
Sam starts hanging out with a gang of gruff fishermen to get to the bottom of their uncanny ability to predict the weather.
Brent and Flint get stuck up a tree together after one of Brent's jokes goes too far.
Flint, desperate to find out what Sam's giving him for his birthday, invents a device to read her diary out loud.
When Flint discovers his father only sees shades of grey, he sets out to blow Tim's mind with a device that lets him see color.
Mr. Earl thinks of himself as the healthiest person in Swallow Falls, but he's hiding a delicious, frosting-topped secret.
Gil takes over as principal and, much to his dad's surprise, actually improves the school.
Townspeople recount their versions of how the island of Swallow Falls came to be.
Flint creates a machine that predicts a person's future occupation, and is surprised by his own result.
Sam discovers that Santa Claus is vacationing in Swallow Falls and drags Flint along to pitch their Christmas ideas to the jolly old elf.