Last in the series, following local law enforcement officers, battling to keep misbehaving Britain clean and tidy. In Dumfries, local inspector Erin is trying to track down the person who' s left a dirty mattress by the side of the road as the fixed penalty notice against the person they found has been set aside; whilst in Newham, Tara and John find themselves in the middle of a noisy Brazilian fiesta – but will they have to shut it down?