Trevor Devall

Coop's got a big test but every time he tries to study Kat creates another distraction. // Coop discovers a self-help motivational tape in the House of Swap and turns his life around.

Old Lady Munson lays down the law; Coop is not to set foot in her yard // Kat ends up with a conditioning collar to curb his demanding meows

Kat's memory eraser leads to Coop forgetting Kat is an evil alien, but Dad accidentally gets Coop's lost memories and suddenly knows the terrible truth. Unfortunately, he's no match for Kat.

Coop falls for Old Lady Munson's niece Fiona, and Kat does everything he can to make Coop look like the juvenile delinquent Old Lady Munson claims he is.

Coop tries to stop Kat from stealing all the Fishy Frisky Bits form the Colossal Coupon Mart and lay the blame on him. // Dennis and Coop's fathers bet their sons can beat each other in a neighbourhood golf tournament.

Coop and Dennis build a tree fort to get some Kat and little sister-free time. // Millie sells a record number of Greenie Girl Cookies but the boxes keep disappearing and all fingers point to Coop

When Kat is fired for incompetence the Robo-Kat-Kops that are sent to take him home also capture Coop, Dennis, and Millie, and take them to the Kat Planet.

When Kat is left at a kennel while the Burtonburgers go on vacation, he leads his fellow animal inmates in revolt against the animal-hating owner.

Kat gets a transceiver stuck in his ear, making him highly susceptible to sound, especially Millie's singing voice. // After Kat's latest tantrum almost destroys the house Dad starts his own extreme renovation. But when Kat adds a few additions of his own, how far will Coop go to get his own game room?

Coop uses Kat's time machine to go back and stop Millie from ever finding Kat in the first place, but ends up altering the future for the worse.