Streetwise Teddy usually stays out of sight of the bully nicknamed Arnie-zilla. But when his sickly-sweet little brother, Bobby, insults Arnie, Teddy must reluctantly come to the rescue--- and become the target of Arnie's wrath instead. When Arnie storms through Chinatown hunting Teddy, it's Bobby who comes to the rescue with a new pet, a cockroach named Hercules. The brothers quickly discover that it's not easy to keep a bug for a pet. And they won't be able to keep Arnie away forever. It will take all of their wits and the help of the creepy Bug Lady to get out of their predicament.