Johnny gets sent to a broken-down summer camp where pets aren't allowed. Dukey manages to stowaway anyway and it's a good thing, Johnny and his campmates will need all the help they can get in a boating competition with the rival rich kids camp lead by Bling Bling. Dad's tired of Johnny's bathroom being a filthy mess and won't let him go outside until he's made it germ-free. But when he combines his sister's Germ Destroying Foam 85 and dad's McPhobe cleaning products, the germs grow out of control and attack Porkbelly.