2015 , United Kingdom
A huge project is underway to expand London's waste capacity. The sewer is the biggest upgrade to the sewage system for more than 150 years and the biggest engineering challenge for a generation.
See alsoAll shows
- Jade Fever episode Green is the new gold! 'Jade Fever' follows the escapades of the Bunce family mining business in Jade City in Canada as they search for million-dollar boulders of jade.
- Brojects episode This light-hearted series follows brothers Kevin and Andrew as they undertake a variety of challenging DIY projects in their cottage retreat with the help of their friend Walker.
- Timber Kings episode Timber Kings follows the best log builders on the planet as they hand-craft stunning homes for the rich and famous.