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 stages a school dinner revolt, takes Whiffer to dog training and sabotages his sister''s sleepover. It can only end in chaos!