The documentary following the work of those cleaning up Britain returns. Trainee bog-buster Anna gets her hands dirty locating a blockage. Dan and Jude get their clean message across, Hollywood-style.

A dodgy scrap dealer is caught up to no good in County Durham. In Surrey, a pair of water engineers tackle damage to the sewer system and Malvern enforcement officers Dan and Jade hunt fly-tippers.

Martin and Glenn raise an army of volunteers to fight back against fly tipping. Layby warriors Clive and Steve do their best to keep rubbish off the roads.

The food inspectors are out in force around Worcestershire. In Northumbria, a specialist sewage blockage team tackle a series of weather-induced problems.

Alan and Paul are faced with cleaning up the detritus of a drunken payday weekend in Bristol. Waste enforcement officers in Essex are out to catch the litter louts behind the UK's most commonly dropped item of rubbish - the cigarette butt.

When Braintree's team of waste enforcement officers crack down on the district's foul dog poo offenders, things get smelly very, very quickly. Dan and Jude hunt down bags of rotting waste in the local waterways.

Gary is shocked when he discovers a huge haul of hypodermics in one of Oxford's clandestine drug dens. Walsall assembles a crack clean-up crew to sift through a mound of flytipped rubbish for clues to who dumped it.

Martin, Glenn and Connor target 40 tons of waste, dumped on a beauty spot near a derelict grand hall in the Midlands. Anna and John try to get to the root of a blockage that could send a tsunami of waste gushing into a bungalow.

Chris takes on some elusive mice causing havoc in an unexpected location. In Buckinghamshire, a lorry load of potentially hazardous waste has been dumped by the side of a main road.