Season 1

1. Episode 1

In the Lake District, an army of engineers with a battery of machinery are constructing one of Britain’s biggest fresh water pipelines. It's a bug's life for Steve and Anthony, as they discover a whole new colony of wildlife feasting off unmentionables.

2019-06-20 • 60 min

2. Episode 2

Steve and Michael tackle a stubborn Liverpool fatberg the size of four jumbo jets, while Mick and John try to stop a sewage leak from ruining Passover.

2019-06-27 • 60 min

3. Episode 3

Steve and Michael send newbie Dan to fight the fatberg. A Warrington water main has burst, flooding local roads and causing 17,000 taps to run dry. Mick and John respond to Mrs Windsor's urgent manhole problem.

2019-07-04 • 60 min

4. Episode 4

There are three weeks to clean an effluent-encrusted sewer beneath a golf course - unless the rain comes. Denzil the sniffer dog detects a whiff of chlorine on the Welsh borders. A potential pollution problem must be fixed within two hours, or heavy fines will be incurred.

2019-07-11 • 60 min

5. Episode 5

A fire-fighting helicopter is chartered to stop a wildfire on the West Yorkshire moorlands reaching a reservoir. Repair works force half of the north-west biggest sewage treatment works to shut down. A failed attempt by two neighbours to clear a blockage results in them losing 11 of their rodding tools down the drain.

2019-07-18 • 60 min

6. Episode 6

A team of specialist divers in the Irish Sea are on an underwater mission to clean out a massive submerged outfall pipe which disperses treated waste water deep into the sea

2019-07-24 • 60 min

7. Episode 7

Stuart tackles a 200-metre fatberg in Manchester, newly qualified "leak listener" Dan detects holes in the water company's network, and the Steves attract donkey attention on a flooded farm.

2019-07-31 • 60 min

8. Episode 8

Teams have to do deal with the largest fatberg seen in the North West, filling 40 per cent of the main sewer system in the docks area of Liverpool.

2019-08-07 • 60 min