Hank has never been fond of his sister's pet iguana, and their relationship worsens when she lays her eggs inside his science project.

"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...

In order to hide a bulldog in his no-pets-allowed dorm, scheming fourth-grader Bernie Bridges enrolls his pet as a transfer student.