Four years ago Dave and Margaret came across a picture of a watermill in the north east. The mill had been abandoned for 50 years and they decided to bring it back to life. The couple put their hearts into the restoration, with experienced amateur builder Dave even designing the new mill water-wheel to generate hydro-electric power from the force of the river. George Clarke is on hand to help the couple as they tackle this huge project. But, with floods and Margaret's life-threatening illness to contend with, will they ever achieve their dream of calling this historic building home?