Documentary following the Donnelly family from County Armagh, thought to be the oldest group of siblings in the world, with a collective age of 1,064 years. Cameras chart how Austin Donnelly set out to discover if he and his 12 siblings really are the oldest group of siblings on the planet, a task his twin Leo assumed after Austin passed away before he could complete his quest. The film weaves a portrait of a large family from rural Northern Ireland growing up in the most turbulent of times, and uses a treasure trove of family archive to help to bring to life personal recollections and experiences. Part of BBC One's Our Lives strand.