Crystal and a girlfriend take off on a spur-of-the-minute road trip to Las Vegas, leaving Rock in charge of keeping house. Meanwhile, with his mom out of town, Willy is out of luck in terms of getting some help for the upcoming science fair.
A Swiss exchange student makes quite an impression on the Zilla household, encouraging the gang to follow rules and establish a curfew. Rock, Crystal and Skunk are even persuaded to participate in family sing-a-longs.
After meeting with a psychic, Willy is convinced that he'll be spending his summer in school retaking the math class he's going to fail if he doesn't pass one crucial test. Meanwhile, Willy's pet reptile Mosh is accused of eating a neighbor's four-legged friend.
A talent show at school offers Willy the perfect opportunity to spotlight his jazz-trumpet playing, but his initial enthusiasm about the performance subsides when his dad begins suggesting ways to make Willy's number stand out from the rest.
Parents worry that the school's new music teacher---Rock Zilla---will be a bad influence on their kids; Willy is unhappy with Rock's teaching gig because he has to make an even greater effort to escape his dad's shadow.
Willy tries to keep the fact that his father is a world-renowned rock star a secret from the kids at his new school. He manages to make two really good friends without revealing the fact that his dad is rich and famous.
Willy's loyalty to his friends Alissa and Quincy is called into question when he's invited to join Sally Raptor's popular clique; a newly licensed Serenity is dangerous behind the wheel of her parents' automobile.
Willy continually finds himself in trouble at school, even though he hasn't done anything wrong. When Rock tries to set things right for his son, the well-meaning father inevitably makes matters worse.
Rock invites a camera crew into the Zilla home to film his family for a reality TV show. The series makes a reluctant star out of Willy, who tries his best to bore the public in hopes of regaining his privacy.