Hidden Treasures of the National Trust

From a fragile silk robe and a wartime wall painting to a writer's handmade timepiece, the hidden treasures in these two houses reveal the stories of two of Britain's most celebrated authors – and the expert teams racing to preserve them.

From scandalous society portraits to glittering royal furniture and the restoration of lost landscapes, this episode reveals how the legacy of the Grand Tour continues to shape Britain's great houses – and the work being done today to protect their remarkable stories for the future.

Preserving the legacy of St Cuthbert and a colony of breeding seabirds, on the remote Farne Islands. And in Wales, experts race to save a fragile bible that shaped Welsh culture.

Caring for the curious collections at two of the National's Trust's most unusual houses, from a boy's suit of Samurai armour to stuffed birds and a living collection of rare sheep.

Exploring 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.

Preserving garden designer Getrude Jekyll's legacy at one of the National Trust's newest properties and at Nymans, celebrating the flamboyant set designer Oliver Messel.