Hidden Treasures of the National Trust Season 4 Episode 1 - A New Agatha Christie Mystery

Airdate: 2026-May-15

Episode summary:

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.

About Hidden Treasures of the National Trust series:

A look behind the velvet rope at the country's most beautiful and historic homes with the people saving Britain's priceless heritage.