The only way to convince Dad that Coop's not the one causing all the destruction is for Coop to never leave his father's sight. But this puts Dad and Millie right in the line of fire. Coop's got to keep on his toes if he wants his family to survive.

Dad builds an ice palace and rink in the backyard.

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

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

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

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.

Kat makes himself invisible and causes trouble for Coop on the night he invites Fiona to dinner and when Dad invites Coop's teacher over for dinner.

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

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