The daily battle between Coop and Kat end up in the bathtub and the fight continues ending in the ba...

Lorne and Harley are filming a 'Catboy Update' film and allow Kat to take possion of a leaf-blower a...

Coop's at the denist's office where Kat distracts the denist and trys some surgery of his own. Coop...

Back to School shopping with the family and Kat finds a chance to make things really ruff for Coop w...

Coop hits a ball into Phoebe's house and has to retrieve it. He's followed in by Kat who at first tr...

Kat gets a taste and the new and improved Fishy Frisky Bits Cat Food and seems to enjoy it a bit too...

Kat's napping is interruped by a little bumblebee and the fight is on.

Coop begins working on his paddleball record and finally annoys Kat who begins to try and wreck his...

Coop and Dennis are at the movie theatre enjoying a 3D movie. Kat plants a cell phone on Coop and ca...

Coop's family dinner out at the local pasta place is interrupted by Kat who has been smuggled in by...

Cat subsitutes Coop's soccer ball for one with a built-in time bomb. Coop and Dennis run off trying...

A day at the pool finds Kat placing some super-bouncing gook on the diving board as Coop prepares to...

Hockey Practice is interrupted by a classic Coop vs Kat on the ice

Kat tries to attack some birds in a feeder and a squirrell scares them off. Kat knocks the squirrell...

Dad offers Coop a chance at a passage to manhood. Kat finds that this does not meat his approval and...

Lorne and Harley oversleep and miss the school bus and have quite the adventure catching up to it on...

Lorne and Harley rock out with a 'Catboy' music video featuring the battles between Coop and Kat.

As Kat joins a bunch of wailing cats, Coop mistakes it for a signal of an alien invasion and sets ou...

Millie heads for the nursing home with Coop and Kat with the idea that Kat can be a companion cat. K...

Coop discovers that Kat has shed his skin, leaving catnipian termites, after broken by Coop.

Coop goes into Kat's brain to mess with Kat's dreams to make them his worst nightmare, but it's a bi...

As Millie and Phoebe play make over, Kat begins using a laser pointer in his finger to tease Honeyfl...

A trip to the zoo has Kat trying to make time with a lady lion only to have the King of the Beast se...

Family picture day has Millie and Dad dropping off Kat at the groomers. Kat does not take to being g...

A dog chases Kat up a tree and Millie sends out an alarm that Kat is stuck in the tree. When Kat doe...

Coop makes a Kat-Proof-Suit out of an old washing machine. It seems to work until Kat breaks out the...

Coop Burtonburger has his first run in with Kat when his little sister brings the feline home.

Coop watches a horror movie, then after, Kat uses flour to make his skin white and scare Coop.

Old Lady Munson lays down the law; Coop is not to set foot into her yard, but Kat makes sure he cros...

After meowing too much, Kat is forced to wear a special collar, but in the end Kat straps the collar...

Coop and Dennis build a tree fort, where Kat used it to power-up his collar because the tree's fort...

Coop gets accused of stealing cookies.

Coop is determined to find out the truth about Kat when Kat's mysterious X-rays are destroyed.

Coop comes up with a plan to rescue his dad's (possibly his) helicopter from Old Lady Munson.

Tensions mount when Coop is sick and Kat is none too pleased, and why shall you ask? Because germs i...

Coop finds some magic stuff in Dad's store and uses it to do a magic act to make Kat disappear forev...

Kat's new toy mouse hypnotizes the other cats in the neighborhood, and Kat seizes the opportunity to...

Coop convinces Dad that he's allergic to Kat so Dad will get rid of the pesky feline for good. Kat t...

When Coop and Kat get glued hand to paw, they are forced to spend the day together. Kat turns out to...

When a contest for pets is announced in Bootsville, Coop subscribes Kat because the winner wins a tr...

As Coop prepares for a big test, Kat comes up with multiple ways to distract him from studying, whic...

Coop discovers a self-help motivational tape in the House of Swap and turns his life around, until K...

Coop has his work cut out for him when he's forced to babysit Kat, Old Lady Munson, and her dog Grow...

Coop comes up with a plan to make money for a Captain Blasteroid Helmet by cutting Old Lady Munson's...

The only way to convince Dad that Coop's not the one causing all the destruction is for Coop to neve...

Dad competes with Dennis' father as to who's the best camper during a family weekend in the woods. C...

Bootsville's annual parade has a Spaced Out theme this year and Dad wants to advertise the House of...

Dad builds an ice palace and rink in the backyard.

Kat takes advantage of Dad turning the House of Swap into a horror fun house by going for real blood...

Coop brings home a carrot suspended in a glass of water for a science project.

Egyptian artifacts at the museum turn out to be high-tech relics from Kat's world.

When Millie finds a new school friend exactly like her, she starts to ignore Kat.

Desperate for a completed science project, Coop borrows one of Kat's weird machines without knowing...

Coop is determined to have Bootsville win against Timber Lane in a baseball game.

On a family shopping trip, Kat gets Coop banned from the grocery store.

Dennis and Coop's fathers encourage them to revive a neighbourhood tradition, the 'round the block g...

The Burtonburgers face friends, neighbours, and each other in a local Fishing Derby.

Dad comes to school to shadow the kids on Parents' Day.

When Kat and Millie embarrass Coop in front of the school by flipping him, he turns to Dennis for ma...

Coop's April fool's day jokes have the entire town not believing a word he says, so how can Coop sto...

Seeing how freaked out Kat gets by a huge stray dog, Coop adopts it as his pet and bodyguard, but th...

Kat overcomes his fear of snow to make sure Coop gets chilly in the Demolition Run tobogganing chall...

The police and Old Lady Munson catch Coop and his friends waking the neighborhood.

Kat struggles to perfect a teleporter to transfer Fishy Frisky Bits across space to his home.

Kat wants a day off, but Coop and the gang play capture the flag right through to his secret forest...

When OLM shows an unusual interest in Coop and Dennis' favourite show, they become equally obsessed...

It's time for the annual Bootsville Days festival celebrating the town's founding. Coop is in a real...

Kat's been eating too many treats and how he is tipping the scales with rolls of flab!

After Coop uses cat whispering to make Kat into his new best friend, he becomes a pal to all animals...

Coop and Dennis join the soccer team but Coop would rather show off than use teamwork.

When Kat's listening transmitter becomes lodged in his ear, his hearing becomes super sensitive.

After Kat's latest tantrum almost destroys the house, Dad starts his own extreme renovation.

After Kat scratches Coop, he believes that he's turning into a were-cat.

On Halloween, Coop and Dennis plan on trick or treating... much to Kat's dismay.

Kat uses a universal remote control to try and hack into Earth's computer systems.

Both Coop and Kat join a local rocket club and Coop becomes a big star. Unfortunately, Kat plans on...

Coop's hopes of a normal Christmas are shattered by the fact that Kat is constantly getting him in t...

Coop falls for Old Lady Munson’s niece Fiona, and Kat does everything he can to make Coop look bad.

When Millie tickles Mr. Kat's 'tickle spot' he goes into a blissful state that renders him useless a...

Kat's swarm of flea-sized mind control robots hop into the ears of the people of Bootsville and soon...

With Coop out of town, Kat wants to turn water into milk and Dennis comes to the rescue.

Millie brings home the class hamster, unaware that Mr. Kat hates hamsters.

When Kat uses his growth ray to bury Bootsville in a catnip jungle, Coop is blamed by the irate Boot...

Coop tries to stop the destruction of Massive Mart.

Kat builds a Rat-ray gun, which he plans on using to turn Coop into a rat, but Dad gets zapped inste...

Coop and Dennis climb inside Kat's scratching post and discover Kat's alien technology has created a...

Coop, Millie, and Dad are taken away to a top secret base to be interrogated, after a UFO investigat...

After taking the fall for one too many of Kat's destructive escapades, Coop decides to let Kat have...

Due to an ‘over-loading’ problem on the Kat Nebula, Kat plots to turn Bootsville Beach into a giant...

Kat’s devious magnifier satellite is causing a dangerous heat wave in Bootsville.

Coop and Dennis compete with one another to reduce their carbon footprints.

Coop uses Kat’s time machine to go back to the past and stop Millie from bringing Kat home, but ends...

Coop tries to undo the Kat invasion, which he brought about by fooling with Kat’s time machine.

Coop becomes Dennis’ wing-man for a change, as they go in search of the 'sewer-croc-baby'.

Coop breaks every window in Dennis' house, and is forced to work off his debt by working in Henry's...

Growler swallows a Kat device which makes him grow to the size of a T-Rex.

Kat's malfunctioning spybot thinks Coop is its new master, and wants to protect him from Kat.

The Kat Kommander's rebellious son runs away to Earth, where he becomes a handful for Kat, and a dan...

Dad accidentally swaps an assortment of Kat's weapons to the unwitting residents of Bootsville.

Kat is left at a kennel while the Burtonburgers go on vacation.

Kat becomes obsessed with making the biggest yarn ball ever made, and starts rustling sheep to gathe...

Dennis is accidentally knocked into a portal around the world.

Kat makes himself invisible and causes trouble for Coop on the night he invites Fiona to dinner and...

Coop's grandparents visit, so Dad buys them rocking chairs. However, it turns out they are adventure...

Coop searches for the last available bag of the feline's favorite food after the factory that makes...

Old Lady Munson's garden gnomes come to life and mistake Coop as their leader.

Old Lady Munson tells Millie creative stories about her adventures in the past.

The evil alien hamster Mr. Cheeks comes back to get revenge on his nemesis, Kat.

Coop's birthday is here, and everyone is coming to his party, and Phoebe is trying to get rid of Fio...

Dad orders Coop to spend more quality time with his little sister; Kat builds a telepathy helmet.

Coop goes on a train to buy something from a man named Old Herman, Unfortunately it turns out to be...

Coop and Kat fight over the animal's new lightning box generator and end up swapping brains.

Coop discovers buried treasure under Old Lady Munson's house.

Kat's memory eraser leads to Coop forgetting Kat is an evil alien, but Dad accidentally gets Coop's...

Kat builds a device that brings an assortment of movie monsters to life.

Coop and Dennis battle Kat's army of living hairballs.

It's Hot Dog Day, and Coop has the honor of being named Keeper of the Weiner Water. But Kat wants to...

Kat soups up Coop's new soccer shoes to allow the wearer to run faster and jump higher, and Coop wea...

Kat turns Coop into a cave man, hoping his lowered I.Q. will make him easier to outsmart. Now Dennis...

Coop takes on the teen aged bully who pedals the Curly Swirl Ice Cream cart, and forgets to pay atte...

Kat makes himself a high-powered good luck charm, which means bad luck for Coop.

Buck Diamond, Animal Protection Officer declares Coop "Bootsville's Most Wanted".

Coop and Fiona have to settle their argument before they can work together to stop Kat in his evil t...

Kat and Old Lady Munson show up at school where they work together to make Coop's life miserable.

Kat shrinks Coop and Dennis down to size and tries to squash them like bugs, which makes it hard for...

Kat thinks the haunted LeBoot Mansion will be the perfect place for an inter-space teleporter.

Kat controls the mind of Agent Napolitan, but his plan backfires when some squirrels attack him.

When Kat is fired for incompetence the Robo-Kat-Kops that are sent to take him home also capture Coo...

Coop and the rest of the kids need Kat's help to escape Kat Planet. Will he give it?