Five famous faces discover the vital roles close family members played in Britain's wartime victory, discovering how ordinary men and women did their bit to keep the country safe. Sue Johnston finds out how nurses like her aunt battled on through the bombing to treat the injured and is touched as her father's work as a volunteer fireman receives long overdue recognition. Singer Alfie Boe learns how his grandfather helped protect the nation as a member of the Home Guard immortalised in Dad's Army and takes to the seas to discover how fishermen from his home town helped feed a hungry nation. Tanni Grey-Thompson discovers that her grandfather William's role as an air warden would have brought him face to face with bombs and fires and, as Radzi Chinyanganya explores how his granny took on a vital role to help keep wartime Britain fed, he hears about some of the unsung heroes of the war, including men from the Caribbean who came to work as lumberjacks to keep the home fires burning. As Helen Lederer uncovers the extraordinary ways in which two of her relatives took on pivotal but highly secretive roles assisting the British intelligence services, she's astonished to learn the true extent of the work of one of them.