The daily battle between Coop and Kat end up in the bathtub and the fight continues ending in the bathroom flood of floods.

Lorne and Harley are filming a 'Catboy Update' film and allow Kat to take possion of a leaf-blower and it's a fight to the finish into Old Lady Munson's yard.

Coop's at the denist's office where Kat distracts the denist and trys some surgery of his own. Coop frees himself and the fight is on with the office being the loosing end.

Back to School shopping with the family and Kat finds a chance to make things really ruff for Coop who's found a toy he really wants.

Coop hits a ball into Phoebe's house and has to retrieve it. He's followed in by Kat who at first trys to mess things up for Coop but has problems of his own by the name of Honeyfluff.

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

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 plans.

Coop and Dennis are at the movie theatre enjoying a 3D movie. Kat plants a cell phone on Coop and calls it bothering the entire theatre. Coop heads for the lobby to clean up where Kat starts the attack. In the end there's a real-to-life looking 3D fight on-stage.

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

Cat subsitutes Coop's soccer ball for one with a built-in time bomb. Coop and Dennis run off trying to find a place to drop the ball to explode. No matter where they go they keep finding reasons the ball can't go there. Kicking the ball between them in panic, the ball winds up next to Kat. And the exploding ball scores!

A day at the pool finds Kat placing some super-bouncing gook on the diving board as Coop prepares to dazzle his friend with a really high dive that ends of leaving Old Lady Munson without her favorite soap-opera and Kat high-and-wet.

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 off the feeder and drop-kicks it out of the yard. A short time later Kat's being hit by an acorn everywhere he goes. A chase of a squirrel winds up back in the yard and Kat learns that squirrels stick together.

Dad offers Coop a chance at a passage to manhood. Kat finds that this does not meat his approval and a fight is on. Can Coop pass the mustard?

Lorne and Harley oversleep and miss the school bus and have quite the adventure catching up to it only to find out that it's Saturday.

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 out to wake up the entire town in alarm. It's a musical interruption at the end by Old Lady Munson that really alarms the citizens.

Millie heads for the nursing home with Coop and Kat with the idea that Kat can be a companion cat. Kat seems to be taking it well until Coop tries to break it up and head for home, and the house-raising battle begins.

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 big nightmare for Coop.

As Millie and Phoebe play make over, Kat begins using a laser pointer in his finger to tease Honeyfluff and uses that to begin a fight with Coop. It's Kid vs Kat vs Cat.

A trip to the zoo has Kat trying to make time with a lady lion only to have the King of the Beast set off a fight beween the other animals and Kat with Kat taking the loosing end all the way.

A dog chases Kat up a tree and Millie sends out an alarm that Kat is stuck in the tree. When Kat does not want to come down, not the fire department, a SWAT team or the Army can get him out of that tree, but Coop knows the way.

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

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