Three houses are reconstructed to the way they would have been during World War II. House #1 is a lavish upper middle class house with an air raid shelter. House #2 is an average middle class home that must deal with a limited food supply. House #3 is a working class home with livestock and a vegetable garden to provide their own food. Three modern day families each live in one for a week, determined by the status of their own 1940s ancestors. They live through wartime on the home front with food rationing. One mother is an ARP warden, all three fathers join the Local Defence Volunteers, two fathers get drafted, the wives join the workforce, and the children are sent away (except the three teenage girls who join the Women's Land Army).