TV presenter Radzi Chinyanganya explores how, aged 17, his grandmother took on a vital role to help keep wartime Britain fed. As he pays an emotional visit to the family farm, he meets an ex-Land Girl who worked the fields to stop the country starving, and discovers the tough realities of WWII rationing. Plus he finds out about some of the unsung heroes of the war, hearing how 900 men from the Commonwealth moved to Britain to do their bit on the home front - and gets his hands dirty as he comes to grips with the tough job of being a lumberjack in the forests of Scotland.