When the family signs up for the neighbourhood watch, Dog is excited to relive his police dog days. However, when Old Lady McGuire's stinky camembert cheese is taken, Dog's investigations lead him back home.

The siblings try to break their annoying habits for the sake of family peace. At first they offer each other support, but then one-by-one they start to give up. Only Boy and Girl keep going, but can they make it to the end of 24 hours?