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

After meowing too much, Kat is forced to wear a special collar, but in the end Kat straps the collar onto Coop's foot.

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

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

Coop, Millie, and Dad are taken away to a top secret base to be interrogated, after a UFO investigator suspects they are aliens.

After taking the fall for one too many of Kat's destructive escapades, Coop decides to let Kat have free rein to cause whatever destruction he wants.

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

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

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

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.

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

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

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