Fleas!

Meet Dirty Bertie - a boy with nose-pickingly disgusting habits! He's full to bursting with madcap plans and crazy ideas, and if it's trouble you're after, look no further - Bertie's sure to be up to his neck in it. Join Bertie as he takes a flea-ridden Whiffer to the vet, does a naughty dare at school and gets a ride in shiny red fire engine!