Dick Strawbridge and Jem Stansfield bring their unique brand of eco-engineering to a farm in Devon in southwest England. They want to tackle the problem of fossil fuel consumption in agriculture and set their sights on a massive grain-drying machine which burns enough diesel in one day to run a small family car for a whole year. Our Planet Mechanics come up with an ambitious plan to fuel the drier using cow manure. With the help of farmer Andy Barnes and his three teenage sons they construct a biogas plant that will harness the natural methane gas given off by dung.

Film Duration: 47 min