Escape from France!

Toby Jones' grandmother was entertaining the troops in northern France when the Nazis invaded...

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MY GRANDPARENTS' WAR Thursday, 8 pm, C4 Factual

Sherlock and Detectorists S star Toby Jones has acting in his blood. His maternal grandmother, Doreen, known as Dorky, was an actor - and during World War Two, she travelled into war zones to entertain the troops.

In this week's fourth and final episode of My Grandparents' War, Toby discovers how she had to be rescued from northern France by the Royal Navy when the Nazis invaded.