Overview: Documentary series about the history of 20th-century farming in Britain looks at wheat and tells how the country became self-sufficient in producing bread-making wheat after the Second World War. Told through the working lives and home movie archives of three wheat-farming families from the east of England, it reveals how farmers went from horse power to machine power and how they used science and genetics to transform the size and yield of wheat and the rural landscape, with controversial outcomes for the countryside.