"Mickey is put in charge of his vacationing neighbors' cat, Bella. His best friend, Amanda, comes along to help out. All they have to do is make sure Bella has enough to eat and doesn't destroy the furniture. Seems simple enough. But Bella escapes from the house and is hit by a truck. Mickey feels awful. What is he going to do? Amanda has an idea to replace the cat with a look-alike from the local pet store, Cat Heaven. They find a cat that looks...

Ava and Courtney get angry at Steven, whose magic tricks always happen at their expense, and trick him into drinking a mixture of chemicals, but the drink has surprising effects and Steven finds out how challenging it is to navigate his house when he is only nine inches tall.