Series 4
6 episodes · May 15, 2026
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S4E1A New Agatha Christie Mystery
May 15, 202659mThe homes of two literary giants reveal personal treasures and the real people behind the pages.
S4E2The Duke, His Wife and Their Lover
May 22, 202659mTwo great country houses reveal stories of extravagant Grand Tours, royal luxury and one of Georgian society's most scandalous relationships.
S4E3Puffins and Pilgrims
May 29, 202660mPreserving the legacy of St Cuthbert and a colony of breeding seabirds on the remote Farne Islands. And experts in Wales race to save a fragile Bible that shaped Welsh culture.
S4E4Collectomania
Jun 5, 202659mCaring for the curious collections at two of the National Trust's most unusual houses, from a boy's suit of samurai armour to stuffed birds and a living collection of rare sheep.
S4E5Bobbins and Hobbit Holes
Jun 12, 202659mExploring workers' lives in the Industrial Revolution: a rare contract of a boy tied to a cotton mill is conserved, and final touches are made to Kinver Edge's rock houses.
S4E6Top Secret Seedlings
Jun 19, 202659mPreserving garden designer Gertrude Jekyll's legacy at one of the National Trust's newest properties, and at Nymans, celebrating the flamboyant set designer Oliver Messel.