Children's entertainment series. Dave Chapman presents an undercover prank adventure involving mess, mayhem and full-on anarchy in a family's home. The kids think they are taking part in a programme called Mega Nanny - what they don't know is that Mega Nanny is their dad in disguise. Dave brings the Nan Van to Kent where tough dad Dad Lee Slatter undertakes the most challenging mission of his life. Will his kids Louis and Gracie warm to the ever so odd and very mysterious Mega Nanny? Or will they bust Dad beneath his rubbery disguise? More importantly, will Dad agree to break his boring house rules to win the prizes? And will he finally see things from his kids' point of view? Be prepared for extreme fun, extreme emotions, extremely close shaves and extreme cream pie action.